- astronomical software
- Astronomical Image Processing System (AIPS)
- Image Reduction and Analysis Facility (IRAF)
- Interactive Data Language (IDL)
- Munich Image Data Analysis System (MIDAS)
- Space Physics Analysis Network (SPAN)
- STARLINK (STARLINK)
- belief
- data collection
- astronomical catalog
- database
- Astrophysical Data Facility (ADF)
- Astroweb
- CDA
- Lyon Meudon Extragalactic Database (LEDA)
- NASA Extragalactic Database (NED)
- SIMBAD
- sky survey
- DEep Near Infrared Survey (DENIS)
- Palomar Sky Survey (PSS)
- Two-Micron All-Sky Survey (2MASS)
- data standard
- hypothesis
- theory
- astronomy theory
- cosmology theory
- big bang (Friedmann-Lemaitre universe)
- closed universe
- flat universe (Einstein-de Sitter universe)
- open universe
- big crunch
- cosmic string
- de Sitter model
- Eddington-Lemaitre universe
- Hoyle-Narlikar theory
- Hubble law
- kinematic relativity
- Klein-Alfvén cosmology
- static universe
- Steady State Theory
- tired light
- Twistor Theory
- variable-mass theory
- big bang (Friedmann-Lemaitre universe)
- galaxy theory
- planetary theory
- stellar theory
- cosmology theory
- law
- conservation law
- electromagnetic law
- Fechner's law
- gravity law
- equivalence principle
- Kepler's Law
- Kepler's first Law
- Kepler's second Law (law of areas)
- Kepler's third Law (harmonic law)
- Newton's theory of gravity (inverse square law)
- Lorentz invariance (principle of relativity)
- Newton's law of motion
- optical law
- quantum law
- exclusion principle (Pauli exclusion principle)
- Fermi-Dirac-Sommerfeld law (FDS)
- Kirchhoff's law
- Rayleigh-Jeans law
- Stefan's law
- uncertainty principle (Heisenberg uncertainty principle)
- wave-particle duality
- Wien's law
- thermodynamics law
- first law of thermodynamics
- gas law
- second law of thermodynamics
- third law of thermodynamics (Nernst theorem)
- virial theorem
- zeroth law of thermodynamics (law of thermal equilibrium)
- physics theory
- quantum mechanics (quantum theory)
- relativity theory
- general relativity (Einstein's theory of gravity)
- special relativity
- toy theory
- unified theory
- Gauge theory (Yang-Mills theories)
- grand unified theory (grand unification, GUT)
- Kaluza-Klein theory
- quantum gravity
- string theory
- supersymmetry
- superunified theory
- theory of everything (TOE)
- astronomy theory
- theory
- institution
- astronomical institution
- High Energy Astrophysics Science Archive Research Center
- Institut de RadioAstronomie Millimetrique (IRAM)
- International Astronomical Union (IAU)
- Laboratory for High Energy Astrophysics (LHEA)
- National Optical Astronomy Observatory (NOAO)
- National Radioastronomy Observatory (NRAO)
- Royal Greenwich Observatory
- SETI
- Smithsonian Astronomical Observatory (SAO)
- high energy physics institution
- science institution
- space science institution
- Apollo space program
- Centre National d'Etudes Spatiales (CNES)
- European Space Agency (ESA)
- Goddard Space Flight Center (GSFC)
- Institute of Space and Astronautical Science (ISAS)
- Jet Propulsion Laboratory (JPL)
- National Aeronautics and Space Administration (NASA)
- National Air and Space Development Agency (NASDA)
- astronomical institution
- mathematical concept
- frame of reference
- geometrical object
- conic section
- fractal
- line
- plane
- point
- coordinate
- co-moving coordinate
- ecliptic coordinate
- equatorial coordinate
- galactic coordinate
- geocentric coordinate
- geodetic coordinate
- local coordinate
- east point
- nadir (downward)
- north point
- zenith
- planetocentric coordinate
- planetographic coordinate
- rotating coordinate
- selenocentric coordinate
- topocentric coordinate
- coordinate
- sphere
- torus
- number
- constant
- astronomical constant
- cosmological constant
- deceleration parameter (q0)
- Hubble constant (H0)
- Hubble radius (c/H)
- Hubble time (H0-1)
- omega
- fundamental physical constant
- atomic constant
- Bohr radius (a0, a0)
- classical electron radius (re)
- Fermi coupling constant (Gf/(hc)3)
- fine-structure constant (α, α)
- Hartree energy (Eh)
- quantum of circulation (h/2me)
- Rydberg constant (R∞)
- Thomson cross section (σe)
- weak mixing angle (sin2θW)
- electromagnetic constant
- Bohr magneton (μB)
- conductance quantum (G0)
- elementary charge (e)
- Josephson constant (KJ)
- magnetic flux quantum (Φ0)
- nuclear magneton (μN)
- von Klitzing constant (RK)
- particle constant
- particle Compton wavelength
- electron Compton wavelength (λC)
- muon Compton wavelength (λC,μ)
- neutron Compton wavelength (λC,n)
- proton Compton wavelength (λC,p)
- tau Compton wavelength (λC,τ)
- particle g factor
- electron g factor (ge)
- electron gyromagnetic ratio (γe)
- neutron g factor (gn)
- neutron gyromagnetic ratio (γn)
- positive muon g factor (gμ)
- proton g factor ()
- proton gyromagnetic ratio (γp)
- particle gyromagnetic ratio
- particle magnetic moment
- particle magnetic moment anomaly
- particle mass
- alpha particle mass (mα)
- deuteron mass (md)
- electron mass (me)
- helion mass (mh)
- muon mass (mμ)
- neutron mass (mn)
- proton mass (mp)
- tau mass (mτ)
- particle Compton wavelength
- physico chemical constant
- atomic mass constant (mu)
- Avogadro number (NA)
- Boltzmann constant (k)
- Faraday constant (F)
- first radiation constant (c1)
- Loschmidt constant (n0)
- molar gas constant (R)
- molar volume of ideal gas (Vm)
- Sackur-Tetrode constant (S0/R)
- second radiation constant (c2)
- Stefan-Boltzmann constant (σ)
- Wien displacement law constant (b)
- universal constant
- characteristic impedance of vacuum (Z0)
- electric constant (ε0)
- Gaussian gravitational constant (k)
- magnetic constant (μ0)
- Newtonian constant of gravitation (G)
- Planck constant (h)
- Planck length (lP)
- Planck mass (mP)
- Planck time (tP)
- speed of light in vacuum (c)
- atomic constant
- mathematical constant
- unit prefix
- astronomical constant
- integer
- atomic mass number
- atomic number (charge number)
- quantity
- angle
- angular size
- argument of the perihelion (ω, longitude of the perihelion)
- azimuth
- blaze angle
- Bragg angle
- celestial latitude
- celestial longitude
- declination (δ)
- elevation (altitude)
- elongation
- galactic latitude
- galactic longitude
- half-power beamwidth (HPBW)
- inclination (i)
- longitude of the ascending node (Ω)
- parallax (distance)
- phase angle
- pitch angle
- right ascension (α)
- terrestrial latitude
- terrestrial longitude
- zenith distance
- angular momentum (L)
- area
- coordinate component
- density
- electromagnetic quantity
- energy
- equatorial sky area
- asterism
- Baade's Window
- celestial sphere
- circumpolar region
- constellation
- Andromeda (Princess of Ethiopia, Chained Lady, And)
- Aquila (Eagle, Aql)
- Ara (Altar, Ara)
- Auriga (Charioteer, Aur)
- Boötes (Herdsman, Bear Driver, Bear Hunter)
- Camelopardalis (Giraffe, Cam)
- Canes Venatici (Hunting Dogs, CVn)
- Canis Major (Big Dog, CMa)
- Canis Minor (Little Dog, CMi)
- Cassiopeia (Andromeda's Mother, Queen of Ethiopia, Cas)
- Centaurus (Centaur, Cen)
- Cepheus (King of Ethiopia, Andromeda's Father, Cep)
- Cetus (Sea Monster, Jonah's Whale, Cet)
- Coma Berenices (Berenice's Hair, Com)
- constellation formerly part of Argo Navis
- constellation named by Bayer
- Apus (Bird of Paradise, Aps)
- Chamaeleon (Chameleon, Cha)
- Dorado (Swordfish, Goldfish, mahi-mahi (a Hawaiian fish))
- Grus (Crane, Gru)
- Hydrus (Sea Serpent, Hyi)
- Indus (American Indian, Ind)
- Pavo (Peacock, Pav)
- Phoenix (Phoenix (Bird), Phe)
- Triangulum Australe (Southern Triangle, TrA)
- Tucana (Toucan, Tuc)
- Volans (Flying Fish, Piscis Volans, Vol)
- constellation named by de Lacaille
- Antlia (Air Pump, Ant)
- Caelum (Chisel, Cae)
- Circinus (Compass, Cir)
- Fornax (Furnace, For)
- Horologium (Clock, Horologium Oscillitorium, Hor)
- Mensa (Table Mountain, Mons Mensa, Men)
- Microscopium (Microscope, Mic)
- Musca (Fly, Musca Australis, Mus)
- Norma (Level (Square), Nor)
- Octans (Octant, Oct)
- Pictor (Easel, Pic)
- Pyxis (Ship's Compass, Pyx)
- Reticulum (Net, Reticle (crosshairs in telescope eyepiece), Ret)
- Sculptor (Sculptor, Scl)
- Telescopium (Telescope, Tel)
- Corona Australis (Southern Crown, CrA)
- Corona Borealis (Northern Crown, CrB)
- Corvus (Crow, Crv)
- Crater (Cup, Crt)
- Crux (Southern Cross, Cru)
- Cygnus (Swan, Northern Cross, Cyg)
- Delphinus (Dolphin, Del)
- Draco (Dragon, Dra)
- Equuleus (Little Horse, Equ)
- Eridanus (River Eridanus, Eri)
- Hercules (Her)
- Hydra (Water Monster, Serpent of Lerna, Hya)
- Lacerta (Lizard, Lac)
- Leo Minor (Little Lion, LMi)
- Lepus (Hare, Lep)
- Lupus (Wolf, Lup)
- Lynx (Lynx, Lyn)
- Lyra (Lyre, Lyr)
- Monoceros (Unicorn, Mon)
- Orion (Hunter, Ori)
- Pegasus (Winged Horse, Peg)
- Perseus (Hero, Per)
- Pisces Australis (Southern Fish, PsA)
- Sagitta (Arrow, Sge)
- Scutum (Shield, Sct)
- Serpens (Serpent, Ser)
- Sextans (Sextant, Sex)
- Triangulum (Triangle, Tri)
- Ursa Major (Great Bear, Big Dipper, UMa)
- Ursa Minor (Little Bear, Little Dipper, UMi)
- Vulpecula (Little Fox, Vul)
- zodiacal constellation
- Andromeda (Princess of Ethiopia, Chained Lady, And)
- Zodiac (ecliptic region)
- Zone of Avoidance
- force quantity
- frequency (ν)
- length
- distance
- Galactocentric distance
- height
- mean free path
- particle Compton wavelength
- electron Compton wavelength (λC)
- muon Compton wavelength (λC,μ)
- neutron Compton wavelength (λC,n)
- proton Compton wavelength (λC,p)
- tau Compton wavelength (λC,τ)
- Planck length (lP)
- radius
- semimajor axis (a)
- semiminor axis
- mass
- atomic mass constant (mu)
- Chandrasekhar limit
- Chandrasekhar-Schonberg limit
- Eddington limit
- gravitational mass
- Jeans mass
- luminous mass
- mass of the Galaxy
- particle mass
- alpha particle mass (mα)
- deuteron mass (md)
- electron mass (me)
- helion mass (mh)
- muon mass (mμ)
- neutron mass (mn)
- proton mass (mp)
- tau mass (mτ)
- Planck mass (mP)
- orbital quantity
- Besselian element
- mean element
- orbital element
- argument of the perihelion (ω, longitude of the perihelion)
- eccentricity (e)
- epoch (T)
- inclination (i)
- longitude of the ascending node (Ω)
- period (P)
- semimajor axis (a)
- osculating element
- power
- pressure
- quantum quantity
- atomic mass number
- atomic number (charge number)
- azimuthal quantum number (k)
- chirality (chiral)
- flavor
- quark color
- spin
- radiation measurement
- color
- luminosity
- magnitude
- spectral feature
- absorption edge
- Balmer jump (Balmer discontinuity)
- Helium discontinuity
- K edge
- set of lines
- spectral line
- absorption line
- emission line
- H alpha
- H beta
- H delta
- H gamma
- hydrogen line
- intercombination line
- ionized helium line
- resonance line
- spectral series line
- Balmer line
- Brackett line
- ionized helium Balmer line
- ionized helium Lyman line
- ionized helium Paschen line
- Lyman line
- Paschen line
- Pfund line
- Pickering line (ionized helium Brackett line)
- U line
- absorption edge
- solid angle
- statistical quantity
- kurtosis
- median
- probable error (p.e.)
- root mean square (rms)
- standard deviation (σ)
- standard error (s.e.)
- statistical error
- temperature
- time
- crossing time
- delay time
- epoch (T)
- half-life (τ1/2)
- hold-time
- Hubble time (H0-1)
- integration time
- Kelvin timescale
- lifetime (τ, mean life)
- lookback time
- nuclear time scale
- period (P)
- Planck time (tP)
- rise time
- velocity
- angle
- constant
- statistical concept
- symmetry
- symmetry breaking (asymmetry)
- transformation
- unit
- amount of substance unit
- mole (mol)
- angle unit
- CGS unit
- electromagnetic unit
- capacitance unit
- farad (F)
- charge unit
- coulomb (C)
- electrostatic unit (esu)
- stat-coulomb
- conductance unit
- siemens (S, reciprocal ohm)
- current unit
- ampere (A)
- electric potential unit
- volt (V)
- inductance unit
- henry (H)
- magnetic flux density unit
- magnetic flux unit
- resistance unit
- ohm (Ω)
- capacitance unit
- energy unit
- electron volt (eV, eV)
- erg (dyne cm)
- joule (J)
- rydberg
- force unit
- frequency unit
- hertz (Hz)
- length unit
- angstrom (Å)
- astronomical unit (AU)
- Bohr radius (a0, a0)
- fermi
- light-year (lt-yr, ly)
- meter (m)
- micron (μ)
- mile
- nautical mile
- parsec (pc)
- solar radius
- luminous intensity unit
- candela (cd)
- mass unit
- atomic mass unit (u, dalton)
- kilogram (kg)
- solar mass
- natural unit
- non SI unit
- angstrom (Å)
- astronomical unit (AU)
- bel (B)
- day (d)
- degree (angle) (°)
- electron volt (eV, eV)
- hour (h)
- liter (L)
- metric ton (t)
- minute (angle) (', arc minute)
- minute (time) (min)
- neper (Np)
- second (angle) (", arc second)
- unified atomic mass unit (u)
- power unit
- watt (W)
- pressure unit
- atmosphere
- bar
- pascal (Pa)
- torr
- radioactivity unit
- SI unit (Syteme Internationale)
- base SI unit
- derived SI unit
- acceleration unit (mˇs-2)
- amount-of-substance concentration unit (molˇm-3)
- area unit (m2)
- current density unit (Aˇm-2)
- luminance unit (cdˇm-2)
- magnetic field strength unit (Aˇm-1)
- mass density unit (kg m-3)
- mass fraction unit (kgˇkg-1 = 1)
- named derived SI unit
- specific volume unit (m3ˇkg-1)
- velocity unit (mˇs-1)
- volume unit (m3)
- wave number unit (m-1)
- pascal (Pa)
- solid angle unit
- steradian (sr, sr, Ω0)
- temperature unit
- Celsius (°C, Centigrade)
- Curie temperature scale (magnetic temperature)
- Fahrenheit
- helium temperature scale
- International temperature scale (ITS90)
- Kelvin (K, absolute)
- Rankine
- Reaumur
- time unit
- aeon (eon)
- cosmic year
- day (d)
- month
- anomalistic month
- nodical month (Draconic month)
- synodic month
- second unit
- week
- year
- amount of substance unit
- reasoning process
- science
- astronomy
- biology
- chemistry
- geology
- photonics
- physics
- astrophysics
- classical physics
- dynamics
- electrodynamics
- hydrodynamics
- magnetohydrodynamics (hydromagnetics, MHD)
- high energy physics
- nuclear physics
- particle physics (high-energy physics)
- mechanics
- optics
- thermodynamics (statistical mechanics)
- theory related concept
- artifact
- device
- instrument
- artificial satellite
- active satellite
- communication satellite
- ESA satellite
- geophysical satellite
- geosynchronous satellite
- ANIK satellite
- GEOS satellite (Geostationary Operational Environmental Satellite)
- GMS satellite
- Meteosat satellite
- TDRSS
- inflatable spacecraft
- Landsat satellite
- lunar spacecraft
- manned spacecraft
- meteorological satellite
- EUMETSAT satellite
- NOAA satellite
- GEOS satellite (Geostationary Operational Environmental Satellite)
- military spacecraft
- NASA satellite
- Cosmic Background Explore (COBE)
- NASDA satellite
- navigation satellite
- recoverable spacecraft
- space telescope
- Sputnik 1
- tethered satellite
- TIROS satellite
- unmanned spacecraft
- fusion device
- high energy detector
- optical device
- coating
- detector
- focus
- wavefront modifier
- particle accelerator
- telescope
- airborne telescope
- electromagnetic telescope
- array telescope
- Optical Very Large Array (OVLA)
- radio interferometer
- MERLIN
- Very Large Array (VLA)
- VLBA (Very Long Baseline Array)
- MERLIN
- Very Large Telescope (VLT)
- Very Large Telescope Interferometer (VLTI)
- Earth based telescope
- altazimuth telescope
- Astrophysical Research Consortium Telescope (ARC 3.5 m)
- Bol'shoi Teleskop Azimutal'nyi (6 m)
- Gemini Telescope North
- Gemini Telescope South
- Gran Telescopio Canarias (GTC)
- Hobby-Eberly Telescope
- Keck
- Large Binocular Telescope (LBT)
- Magellan Project (Magellan I)
- MMT Telescope
- Mount Stromlo 2.3-meter
- New Technology Telescope (NTT)
- Nordic Optical Telescope (NOT)
- Sloan Digital Sky Survey Telescope (Sloan 2.5 m, SDSS)
- Southern African Large Telescope (SALT)
- Subaru Telescope (Subaru)
- Telescopio Nazionale Galileo (Galileo)
- Very Large Telescope (VLT)
- William Herschel Telescope (WHT)
- Wisconsin-Indiana-Yale-NOAO Telescope (WIYN 3.5 m)
- equatorial telescope
- Bent-yoke equatorial telescope
- Cross-axis equatorial telescope
- Harlan J. Smith Telescope (107 inch)
- English equatorial telescope
- 28-inch Visual Refractor (Greenwich refractor)
- Hooker Telescope (100 inch)
- NASA Infrared Telescope Facility (NASA IRTF)
- United Kingdom Infrared Telescope (UKIRT)
- Fork equatorial telescope
- 2-meter Telescope (Tautenberg Schmidt)
- Byurakan 2.6-meter Reflector (Byurakan 102 inch)
- C. Donald Shane Telescope (120 inch)
- Calar-Alto-Schmidtspiegel (Calar Alto Schmidt)
- Hiltner Telescope (Hiltner 2.3 m)
- Irénée du Pont Telescope (du Pont 100 inch)
- Kiso Schmidt Telescope
- Oschin 48-inch Telescope (Oschin Schmidt)
- Shajn 2.6-m Reflector (Crimean 102 inch)
- German equatorial telescope
- 26-inch Equatorial
- 36-inch Refractor (36 inch)
- Grosser Refraktor
- Grosser Refraktor^2
- Lunette Bischoffscheim
- McCormick Refractor (26 inch)
- Meudon Refractor (33 inch)
- Potsdam Refractor
- The Thaw Refractor (30 inch)
- Thompson Refractor
- Yerkes 40-inch Refractor (40 inch)
- Horseshoe equatorial telescope
- 2.3-meter Telescope (Vainu Bappu 2.3 m)
- 3.5-meter Telescope
- Anglo-Australian Telescope (AAT)
- Canada-France-Hawaii Telescope (CFHT)
- ESO 3.6-meter Telescope (ESO 3.6 m)
- George Ellery Hale Telescope (200 inch)
- Nicholas U. Mayall Reflector (Kitt Peak 4 m)
- Victor M. Blanco Telescope (CTIO 4 meter)
- Polar-disk equatorial telescope
- Isaac Newton Telescope (Isaac Newton 98 inch)
- Schmidt
- 2-meter Telescope (Tautenberg Schmidt)
- 3TA-10 Schmidt Telescope (Byurakan Schmidt)
- Calar-Alto-Schmidtspiegel (Calar Alto Schmidt)
- ESO 1-meter Schmidt Telescope (ESO Schmidt)
- Kiso Schmidt Telescope
- Kvistaberg Schmidt Telescope (Uppsala Schmidt)
- Oschin 48-inch Telescope (Oschin Schmidt)
- Schmidt Telescope
- Télescope Combiné de Schmidt
- Télescope de Schmidt (Calem Schmidt)
- United Kingdom Schmidt Telescope Unit (U.K. Schmidt, UKST)
- Venezuela 1-meter Schmidt
- fixed mount telescope
- transit telescope
- altazimuth telescope
- optical telescope
- 2.3-meter Telescope (Vainu Bappu 2.3 m)
- 3.5-meter Telescope
- Anglo-Australian Telescope (AAT)
- Astrophysical Research Consortium Telescope (ARC 3.5 m)
- Bol'shoi Teleskop Azimutal'nyi (6 m)
- Byurakan 2.6-meter Reflector (Byurakan 102 inch)
- C. Donald Shane Telescope (120 inch)
- Canada-France-Hawaii Telescope (CFHT)
- ESO 3.6-meter Telescope (ESO 3.6 m)
- Gemini Telescope North
- Gemini Telescope South
- George Ellery Hale Telescope (200 inch)
- Gran Telescopio Canarias (GTC)
- Harlan J. Smith Telescope (107 inch)
- Hiltner Telescope (Hiltner 2.3 m)
- Hobby-Eberly Telescope
- Hooker Telescope (100 inch)
- Hubble Space Telescope (HST, HST)
- Irénée du Pont Telescope (du Pont 100 inch)
- Isaac Newton Telescope (Isaac Newton 98 inch)
- Keck
- Large Binocular Telescope (LBT)
- Magellan Project (Magellan I)
- MMT Telescope
- Mount Stromlo 2.3-meter
- NASA Infrared Telescope Facility (NASA IRTF)
- New Technology Telescope (NTT)
- Nicholas U. Mayall Reflector (Kitt Peak 4 m)
- Nordic Optical Telescope (NOT)
- optical space telescope
- Hubble Space Telescope (HST, HST)
- reflector with corrector plate
- refractor
- 26-inch Equatorial
- 28-inch Visual Refractor (Greenwich refractor)
- 36-inch Refractor (36 inch)
- Grosser Refraktor
- Grosser Refraktor^2
- Lunette Bischoffscheim
- McCormick Refractor (26 inch)
- Meudon Refractor (33 inch)
- Potsdam Refractor
- The Thaw Refractor (30 inch)
- Thompson Refractor
- Yerkes 40-inch Refractor (40 inch)
- Shajn 2.6-m Reflector (Crimean 102 inch)
- Sloan Digital Sky Survey Telescope (Sloan 2.5 m, SDSS)
- Southern African Large Telescope (SALT)
- Subaru Telescope (Subaru)
- Telescopio Nazionale Galileo (Galileo)
- UBC-Laval Telescope (LMT)
- United Kingdom Infrared Telescope (UKIRT)
- Very Large Telescope (VLT)
- Victor M. Blanco Telescope (CTIO 4 meter)
- William Herschel Telescope (WHT)
- Wisconsin-Indiana-Yale-NOAO Telescope (WIYN 3.5 m)
- radio telescope
- Arecibo
- radio interferometer
- MERLIN
- Very Large Array (VLA)
- VLBA (Very Long Baseline Array)
- MERLIN
- reflector
- 2.3-meter Telescope (Vainu Bappu 2.3 m)
- Anglo-Australian Telescope (AAT)
- Astrophysical Research Consortium Telescope (ARC 3.5 m)
- Byurakan 2.6-meter Reflector (Byurakan 102 inch)
- Canada-France-Hawaii Telescope (CFHT)
- Cassegrain
- C. Donald Shane Telescope (120 inch)
- George Ellery Hale Telescope (200 inch)
- Hooker Telescope (100 inch)
- Large Binocular Telescope (LBT)
- NASA Infrared Telescope Facility (NASA IRTF)
- Nordic Optical Telescope (NOT)
- United Kingdom Infrared Telescope (UKIRT)
- ESO 3.6-meter Telescope (ESO 3.6 m)
- Gregorian
- Hobby-Eberly Telescope
- Isaac Newton Telescope (Isaac Newton 98 inch)
- Magellan Project (Magellan I)
- Maksutov telescope
- MMT Telescope
- Mount Stromlo 2.3-meter
- Newtonian
- UBC-Laval Telescope (LMT)
- reflector with corrector plate
- Ritchey-Chrétien
- 3.5-meter Telescope
- Bol'shoi Teleskop Azimutal'nyi (6 m)
- Gemini Telescope North
- Gemini Telescope South
- Gran Telescopio Canarias (GTC)
- Harlan J. Smith Telescope (107 inch)
- Hiltner Telescope (Hiltner 2.3 m)
- Hubble Space Telescope (HST, HST)
- Irénée du Pont Telescope (du Pont 100 inch)
- Keck
- New Technology Telescope (NTT)
- Nicholas U. Mayall Reflector (Kitt Peak 4 m)
- Sloan Digital Sky Survey Telescope (Sloan 2.5 m, SDSS)
- Subaru Telescope (Subaru)
- Telescopio Nazionale Galileo (Galileo)
- Very Large Telescope (VLT)
- Victor M. Blanco Telescope (CTIO 4 meter)
- Schmidt
- 2-meter Telescope (Tautenberg Schmidt)
- 3TA-10 Schmidt Telescope (Byurakan Schmidt)
- Calar-Alto-Schmidtspiegel (Calar Alto Schmidt)
- ESO 1-meter Schmidt Telescope (ESO Schmidt)
- Kiso Schmidt Telescope
- Kvistaberg Schmidt Telescope (Uppsala Schmidt)
- Oschin 48-inch Telescope (Oschin Schmidt)
- Schmidt Telescope
- Télescope Combiné de Schmidt
- Télescope de Schmidt (Calem Schmidt)
- United Kingdom Schmidt Telescope Unit (U.K. Schmidt, UKST)
- Venezuela 1-meter Schmidt
- segmented mirror telescope
- Shajn 2.6-m Reflector (Crimean 102 inch)
- Southern African Large Telescope (SALT)
- William Herschel Telescope (WHT)
- Wisconsin-Indiana-Yale-NOAO Telescope (WIYN 3.5 m)
- space telescope
- array telescope
- gravity wave telescope
- neutrino telescope
- DUMAND (Deep Underwater Muon and Neutrino Detector.)
- Kamiokande II
- Sudbury Neutrino Observatory (SNO)
- artificial satellite
- instrument
- observatory
- device
- naked eye object
- Andromeda galaxy (M 31)
- h and Chi Persei (Perseus OB1, double cluster in Perseus)
- Hubble Space Telescope (HST, HST)
- Hyades
- Magellanic Cloud
- Large Magellanic Cloud (LMC)
- Small Magellanic Cloud (SMC)
- Large Magellanic Cloud (LMC)
- meteor (shooting star)
- Milky Way
- naked eye star
- Achernar (alpha Eridani, HR 472)
- Aldebaran (alpha Tau, HR 1457)
- Alpha Andromedae (HR 15)
- Alpha Antliae (HR 4104)
- Alpha Apodis (HR 5470)
- Alpha Arietis (HR 617)
- Alpha Caeli (HR 1502)
- Alpha Cassiopeiae (HR 168)
- alpha Centauri (Rigil Kent, HR 5459)
- Alpha Cephei (HR 8162)
- Alpha Chamaeleontis (HR 3318)
- Alpha Circini (HR 5463)
- Alpha Columbae (HR 1956)
- Alpha Coronae Autralis (HR 7254)
- Alpha Coronae Borealis (HR 5793)
- Alpha Doradus (HR 1465)
- Alpha Equulei (HR 8131)
- Alpha Fornacis (HR 963)
- Alpha Gruis (HR 8425)
- Alpha Horologii (HR 1326)
- Alpha Hydrae (HR 3748, Alphard)
- Alpha Indi (HR 7869)
- Alpha Lacertae (HR 8585)
- Alpha Leonis (HR 3982)
- Alpha Leporis (HR 1865)
- Alpha Lupi (HR 5469)
- Alpha Lyncis (HR 3705)
- Alpha Monocerotis (HR 2970)
- Alpha Muscae (HR 4798)
- Alpha Ophiuchi (HR 6556)
- Alpha Pavonis (HR 7790)
- Alpha Persei (HR 1017)
- Alpha Phoenicis (HR 99)
- Alpha Pictoris (HR 2550)
- Alpha Pyxidis (HR 3468)
- Alpha Reticuli (HR 1336)
- Alpha Sculptoris (HR 280)
- Alpha Scuti (HR 6973)
- Alpha Serpentis (HR 5854)
- Alpha Sextantis (HR 3981)
- Alpha Telescopii (HR 6897)
- Alpha Trianguli Australis (HR 6217)
- Alpha Tucanae (HR 8502)
- Alpha Vulpeculae (HR 7405)
- Altair (alpha Aql, HR 7557)
- Antares (alpha Sco, HR 6134)
- Arcturus (Alpha Boötis, HR 5340)
- Beta Aquarii (HR 8232)
- Beta Arae (HR 6461)
- Beta Camelopardalis (HR 1603)
- Beta Cancri (HR 3249)
- Beta Ceti (HR 188)
- Beta Crucis (HR 4853)
- Beta Delphini (HR 7882)
- Beta Herculis (HR 6148)
- Beta Hydri (HR 98)
- Beta Librae (HR 5685)
- Beta Trianguli (HR 622)
- Beta Volantis (HR 3347)
- Canopus (alpha Car, HR 2326)
- Canum Venaticorum (HR 4915)
- Capella (HR 1708, Alpha Aurigae)
- Delta Capricorni (HR 8322)
- Delta Crateris (HR 4382)
- Delta Scuti (HR 7020)
- Deneb (alpha Cyg, HR 7924)
- Epsilon Pegasi (HR 8308)
- Epsilon Sagittarii (HR 6879)
- Epsilon Ursae Majoris (HR 4905)
- Eta Piscium (HR 437)
- Fomalhaut (alpha PsA, HR 8728)
- Gamma Corvi (HR 4662)
- Gamma Draconis (HR 6705)
- Gamma Microscopii (HR 8039)
- Gamma Normae (HR 6072)
- Gamma Sagittae (HR 7635)
- Gamma Velorum (HR 3207)
- HR 4247
- Mira (omicron Cet)
- Nu Octantis (HR 8254)
- Polaris (HR 424, Pole star, North Star)
- Pollux (beta Gem, HR 2990)
- Procyon (alpha CMi, HR 2943)
- Rigel (beta Ori, HR 1713)
- Sirius (alpha CMa, Dog Star, HR 2491)
- Spica (alpha Vir, HR 5056)
- Vega (alpha Lyr, HR 7001)
- Zeta Puppis (HR 3165)
- Orion Nebula (M 42)
- Pleiades (M 45, NGC 1432)
- Praesepe (Beehive Cluster, M 44, NGC 2632)
- Sun
- Andromeda galaxy (M 31)
- natural object
- celestial body
- asteroid (minor planet, planetoid)
- asteroid belt
- collection of stars
- association
- OB association
- Carina OB 2
- h and Chi Persei (Perseus OB1, double cluster in Perseus)
- Perseus OB2
- Scorpius OB1
- Sco-Cen association
- T association
- OB association
- collection of galaxies
- binary galaxy (double galaxy)
- galaxy cluster
- Centaurus cluster (3U 1247-41)
- galaxy group
- Hercules cluster (3U 1551 + 15)
- Perseus cluster
- rich cluster
- Coma cluster (Coma X-1, Abell 1656)
- Virgo cluster
- Sculptor Group
- Great Wall
- hypergalaxy
- Andromeda galaxy (M 31)
- Milky Way
- Andromeda galaxy (M 31)
- supercluster
- Local Supercluster (Virgo supercluster)
- Perseus-Pisces region
- galaxy
- active galaxy
- blazar
- BL Lacertae (BL Lac)
- Optically Violent Variable galaxy (OVV)
- blazar
- blue compact galaxy (BCG)
- compact galaxy
- dwarf galaxy
- elliptical galaxy
- dwarf elliptical galaxy
- giant elliptical galaxy
- M 87 (3C 274, Virgo A, 2U 1228+12)
- emission line galaxy
- Haro galaxy
- Markarian galaxy
- narrow emission line galaxy (NELG)
- narrow emission line X-ray galaxy (NLXG)
- violent galaxy (eruptive galaxy, exploding galaxy)
- quasar (QSO)
- field galaxy
- galaxy containing Cepheids
- gravitational lens
- infrared galaxy
- extremely red galaxy (ERG)
- IRAS galaxy
- ultra-luminous infrared galaxy (ULIRG)
- irregular galaxy
- faint blue galaxy
- IC 1613
- Magellanic Cloud
- Large Magellanic Cloud (LMC)
- Small Magellanic Cloud (SMC)
- Large Magellanic Cloud (LMC)
- NGC 4214
- NGC 5195 (M51b)
- NGC 6822
- Wolf-Lundmark-Melotte (WLM)
- low surface brightness galaxy (LSBG)
- lyman break galaxy (LBG)
- N galaxy
- protogalaxy
- radio galaxy
- blazar
- BL Lacertae (BL Lac)
- Optically Violent Variable galaxy (OVV)
- Broad-line radio galaxy (BLRG)
- core-halo galaxy
- D galaxy
- double radio source
- Cygnus A (3C 405, 2U 1957+40)
- Fornax A (NGC 1316)
- head-tail galaxy
- Low-excitation radio galaxy (LERG)
- M 87 (3C 274, Virgo A, 2U 1228+12)
- Narrow-line radio galaxy (NLRG)
- NGC 1275 (3U 0316+41, Perseus X-1, Perseus A)
- radio loud quasar
- Weak-lined radio galaxy (WLRG)
- blazar
- ring galaxy
- S0 galaxy
- Fornax A (NGC 1316)
- spiral galaxy
- barred spiral
- Milky Way
- Sa spiral (early-type spiral)
- Sb spiral
- Andromeda galaxy (M 31)
- M 81 (NGC 3031)
- Andromeda galaxy (M 31)
- Sc spiral
- M 100 (NGC 4321)
- Pinwheel galaxy (M 33, NGC 598, Triangulum galaxy)
- Whirlpool galaxy (M 51, NGC 5194)
- M 100 (NGC 4321)
- Seyfert galaxy
- Sombrero galaxy (M 104, NGC 4594)
- starburst galaxy
- active galaxy
- star cluster
- globular cluster
- class I globular cluster
- M 75 (NGC 6864)
- M 75 (NGC 6864)
- class II globular cluster
- class III globular cluster
- M 54 (NGC 6715)
- M 54 (NGC 6715)
- class IV globular cluster
- class IX globular cluster
- class V globular cluster
- class VI globular cluster
- M 3 (NGC 5272)
- M 3 (NGC 5272)
- class VII globular cluster
- class VIII globular cluster
- class X globular cluster
- class XI globular cluster
- M 55 (NGC 6809)
- M 55 (NGC 6809)
- extragalactic globular cluster
- G1 (Mayall II)
- G1 (Mayall II)
- Oosterhoff Group globular cluster
- unclassified globular cluster
- class I globular cluster
- open cluster
- alpha Persei cluster
- Coma open cluster
- Hyades
- NGC 1818
- NGC 1850
- Pleiades (M 45, NGC 1432)
- Praesepe (Beehive Cluster, M 44, NGC 2632)
- globular cluster
- star system
- binary star
- 17 Leporis
- alpha Centauri (Rigil Kent, HR 5459)
- astrometric binary
- Barnard's star
- close binary
- eclipsing binary
- AS Eri
- beta Lyrae star
- beta Persei star
- Algol (beta Per, Demon star)
- BM Orionis
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- CV Serpentis
- DQ Herculis (Nova Herculis 1934)
- epsilon Aurigae
- Hercules X-1 (3U 1653+35)
- S Doradus
- Scorpius X-1
- Vela X-1 (HD 77581, 3U 0900-40)
- VV Cephei star
- W Ursae Majoris star
- nova
- eclipsing binary
- Cygnus X-3 (2U 2030+40)
- detached binary
- Kruger 60 AB
- Luyten 726-8
- Mira (omicron Cet)
- Polaris (HR 424, Pole star, North Star)
- RS CVn star
- Sirius (alpha CMa, Dog Star, HR 2491)
- SMC X-1 (2U 0115-73)
- spectroscopic binary
- double line spectroscopic binary
- Plaskett's star (HD 47129)
- single line spectroscopic binary
- Vela X-1 (HD 77581, 3U 0900-40)
- Spica (alpha Vir, HR 5056)
- Theta2 Orionis (2U 0525-06)
- UV Ceti (Luyten 726-8 B)
- visual binary
- Procyon (alpha CMi, HR 2943)
- zeta Aurigae star
- triple star
- 40 Eridani
- Gamma Velorum (HR 3207)
- binary star
- association
- comet
- gamma ray source
- Messier object
- Andromeda galaxy (M 31)
- Crab Nebula (M 1, Taurus A, 2U 0531+22)
- Dumbbell Nebula (M 27, NGC 6853)
- Lagoon Nebula (M 8, NGC 6523)
- M 10 (NGC 6254)
- M 100 (NGC 4321)
- M 107 (NGC 6171)
- M 12 (NGC 6218)
- M 13 (NGC 6205)
- M 14 (NGC 6402)
- M 15 (NGC 7078)
- M 19 (NGC 6273)
- M 2 (NGC 7089)
- M 22 (NGC 6656)
- M 28 (NGC 6626)
- M 3 (NGC 5272)
- M 30 (NGC 7099)
- M 32
- M 4 (NGC 6121)
- M 5 (NGC 5904)
- M 53 (NGC 5024)
- M 54 (NGC 6715)
- M 55 (NGC 6809)
- M 56 (NGC 6779)
- M 62 (NGC 6266)
- M 68 (NGC 4590)
- M 69 (NGC 6637)
- M 70 (NGC 6681)
- M 71 (NGC 6838)
- M 72 (NGC 6981)
- M 75 (NGC 6864)
- M 79 (NGC 1904)
- M 80 (NGC 6093)
- M 81 (NGC 3031)
- M 87 (3C 274, Virgo A, 2U 1228+12)
- M 9 (NGC 6333)
- M 92 (NGC 6341)
- Omega Nebula (Swan Nebula, M 17, NGC 6618)
- Orion Nebula (M 42)
- Owl Nebula (M 97, NGC 3587)
- Pinwheel galaxy (M 33, NGC 598, Triangulum galaxy)
- Pleiades (M 45, NGC 1432)
- Praesepe (Beehive Cluster, M 44, NGC 2632)
- Ring Nebula (M 57)
- Sombrero galaxy (M 104, NGC 4594)
- Trifid Nebula (M 20, NGC 6514)
- Whirlpool galaxy (M 51, NGC 5194)
- Andromeda galaxy (M 31)
- natural satellite
- Amalthea (Jupiter V, Barnard's satellite)
- Ariel
- Deimos
- Demeter
- Dione
- Enceladus
- Galilean satellite
- Hades (Jupiter IX)
- Hera (Jupiter VII)
- Hestia (Jupiter VI)
- Hyperion
- Iapetus
- Janus
- Mimas
- Miranda
- Moon
- Nereid
- Oberon
- Pan (Jupiter XI)
- Phobos
- Phoebe
- Poseidon (Jupiter VIII)
- Rhea
- Tethys
- Themis
- Titan (S VI)
- Titania
- Triton
- Umbriel
- nebula
- dark nebula
- Bok globule
- Coalsack
- Horsehead Nebula (NGC 2024)
- H II region
- compact H II region
- Hourglass Nebula (MyCn18)
- Hourglass Nebula (MyCn18)
- gaseous nebula (emission nebula)
- 30 Doradus Nebula (NGC 2070, Great Looped Nebula, Tarantula Nebula)
- Carina Nebula (NGC 3372)
- Eagle Nebula (IC 4703)
- expanding emission nebula
- nova remnant
- planetary nebula
- Cat's Eye (NGC 6543)
- Cotton Candy nebula (IRAS 17150-3224)
- Dumbbell Nebula (M 27, NGC 6853)
- Egg Nebula (CRL 2688)
- Helix Nebula (NGC 7293)
- Helix nebula (NGC 7293)
- Hourglass Nebula (MyCn18)
- Hubble 5
- IC 3568
- M2-9
- NGC 2346
- NGC 2392 (Eskimo Nebula)
- NGC 3132 (Eight-Burst Nebula, Southern Ring Nebula)
- NGC 3918
- NGC 5307
- NGC 6210
- NGC 6751
- NGC 6818
- NGC 6826
- NGC 7009
- NGC 7027
- NGC 7635 (Bubble nebula)
- Owl Nebula (M 97, NGC 3587)
- Ring Nebula (M 57)
- Rotten Egg Nebula (OH231.8+4.2)
- Silkworm nebula (IRAS 17441-2411)
- Stingray Nebula (Hen-1357)
- Cat's Eye (NGC 6543)
- supernova remnant (SNR)
- Crab Nebula (M 1, Taurus A, 2U 0531+22)
- Cygnus Loop (Veil Nebula, NG6 6992, Cygnus X-5)
- Monoceros Loop
- Puppis A (2U 0821-42)
- Vela supernova remnant
- W44
- W51
- Crab Nebula (M 1, Taurus A, 2U 0531+22)
- Keyhole Nebula
- Lagoon Nebula (M 8, NGC 6523)
- N 159
- NGC 3603
- NGC 604
- North America Nebula (NGC 7000)
- Omega Nebula (Swan Nebula, M 17, NGC 6618)
- Orion Nebula (M 42)
- Tarantula Nebula
- Trifid Nebula (M 20, NGC 6514)
- 30 Doradus Nebula (NGC 2070, Great Looped Nebula, Tarantula Nebula)
- H II condensation
- compact H II region
- reflection nebula
- cometary nebula
- Hubble nebula (NGC 2261)
- Hind's nebula (NGC 1554, NGC 1555)
- NGC 1999
- cometary nebula
- dark nebula
- NGC object
- planet
- radio source
- Cassiopeia A (3C 461, 3U 2321+58)
- Centaurus A (3U 1322-42, NGC 5128)
- Lupus Loop
- North Polar Spur
- Orion A
- Orion B (NGC 2024)
- radio galaxy
- blazar
- BL Lacertae (BL Lac)
- Optically Violent Variable galaxy (OVV)
- Broad-line radio galaxy (BLRG)
- core-halo galaxy
- D galaxy
- double radio source
- Cygnus A (3C 405, 2U 1957+40)
- Fornax A (NGC 1316)
- head-tail galaxy
- Low-excitation radio galaxy (LERG)
- M 87 (3C 274, Virgo A, 2U 1228+12)
- Narrow-line radio galaxy (NLRG)
- NGC 1275 (3U 0316+41, Perseus X-1, Perseus A)
- radio loud quasar
- Weak-lined radio galaxy (WLRG)
- blazar
- radio lobes
- Sagittarius A
- Sagittarius B2
- supernova remnant (SNR)
- Crab Nebula (M 1, Taurus A, 2U 0531+22)
- Cygnus Loop (Veil Nebula, NG6 6992, Cygnus X-5)
- Monoceros Loop
- Puppis A (2U 0821-42)
- Vela supernova remnant
- W44
- W51
- Crab Nebula (M 1, Taurus A, 2U 0531+22)
- W3
- W49
- ring
- A ring
- B ring
- bright ring
- Crepe Ring (C ring)
- D ring
- E ring
- ring gap
- solar system
- star
- asymptotic branch star
- Beta Pictoris
- binary star
- 17 Leporis
- alpha Centauri (Rigil Kent, HR 5459)
- astrometric binary
- Barnard's star
- close binary
- eclipsing binary
- AS Eri
- beta Lyrae star
- beta Persei star
- Algol (beta Per, Demon star)
- BM Orionis
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- CV Serpentis
- DQ Herculis (Nova Herculis 1934)
- epsilon Aurigae
- Hercules X-1 (3U 1653+35)
- S Doradus
- Scorpius X-1
- Vela X-1 (HD 77581, 3U 0900-40)
- VV Cephei star
- W Ursae Majoris star
- nova
- eclipsing binary
- Cygnus X-3 (2U 2030+40)
- detached binary
- Kruger 60 AB
- Luyten 726-8
- Mira (omicron Cet)
- Polaris (HR 424, Pole star, North Star)
- RS CVn star
- Sirius (alpha CMa, Dog Star, HR 2491)
- SMC X-1 (2U 0115-73)
- spectroscopic binary
- double line spectroscopic binary
- Plaskett's star (HD 47129)
- single line spectroscopic binary
- Vela X-1 (HD 77581, 3U 0900-40)
- Spica (alpha Vir, HR 5056)
- Theta2 Orionis (2U 0525-06)
- UV Ceti (Luyten 726-8 B)
- visual binary
- Procyon (alpha CMi, HR 2943)
- zeta Aurigae star
- bright giant
- Alpha Hydrae (HR 3748, Alphard)
- Alpha Lyncis (HR 3705)
- Alpha Reticuli (HR 1336)
- Alpha Sculptoris (HR 280)
- Alpha Trianguli Australis (HR 6217)
- Arcturus (Alpha Boötis, HR 5340)
- Beta Trianguli (HR 622)
- Mintaka
- Pollux (beta Gem, HR 2990)
- circumpolar star
- composite spectrum star
- symbiotic star (combination variable)
- VV Cep star
- Delta Del star
- dwarf Cepheid (delta Scuti star, ultrashort-period Cepheid)
- double star
- dwarf (d, main sequence star)
- AE Aurigae
- Alpha Caeli (HR 1502)
- alpha Centauri (Rigil Kent, HR 5459)
- Alpha Cephei (HR 8162)
- Alpha Comae Berenices (HR 4969)
- Alpha Coronae Autralis (HR 7254)
- Alpha Coronae Borealis (HR 5793)
- Alpha Fornacis (HR 963)
- Alpha Lacertae (HR 8585)
- Alpha Leonis (HR 3982)
- Alpha Mensae (HR 2261)
- Altair (alpha Aql, HR 7557)
- Beta Librae (HR 5685)
- black dwarf
- blue dwarf
- brown dwarf
- Epsilon Eri
- Epsilon Eridani
- Epsilon Indi
- Fomalhaut (alpha PsA, HR 8728)
- Kruger 60 AB
- red dwarf
- Barnard's star
- flare star (UV Ceti star)
- Proxima Centauri
- UV Ceti (Luyten 726-8 B)
- Wolf 359
- Regulus (alpha Leo)
- RW Aurigae
- Sirius (alpha CMa, Dog Star, HR 2491)
- Sun
- Theta2 Orionis (2U 0525-06)
- UV Ceti star
- Vega (alpha Lyr, HR 7001)
- Zeta Ophiuchi
- early star
- A star
- Ae star
- Alpha Cephei (HR 8162)
- Alpha Circini (HR 5463)
- Alpha Coronae Autralis (HR 7254)
- Alpha Coronae Borealis (HR 5793)
- Alpha Doradus (HR 1465)
- Alpha Lacertae (HR 8585)
- Alpha Ophiuchi (HR 6556)
- Alpha Pictoris (HR 2550)
- Alpha Sextantis (HR 3981)
- Altair (alpha Aql, HR 7557)
- Am star
- Ap star
- Beta Trianguli (HR 622)
- Canum Venaticorum (HR 4915)
- Delta Capricorni (HR 8322)
- Epsilon Ursae Majoris (HR 4905)
- Fomalhaut (alpha PsA, HR 8728)
- Magnetic star
- Sirius (alpha CMa, Dog Star, HR 2491)
- Vega (alpha Lyr, HR 7001)
- white giant
- white supergiant
- Deneb (alpha Cyg, HR 7924)
- epsilon Aurigae
- B star
- Achernar (alpha Eridani, HR 472)
- Alpha Andromedae (HR 15)
- Alpha Columbae (HR 1956)
- Alpha Gruis (HR 8425)
- Alpha Leonis (HR 3982)
- Alpha Lupi (HR 5469)
- Alpha Muscae (HR 4798)
- Alpha Pavonis (HR 7790)
- Alpha Pyxidis (HR 3468)
- Alpha Sculptoris (HR 280)
- Alpha Telescopii (HR 6897)
- Be star
- Bellatrix (gamma Orionis)
- Beta Crucis (HR 4853)
- Beta Librae (HR 5685)
- Bp star
- Bw star
- Epsilon Sagittarii (HR 6879)
- Gamma Corvi (HR 4662)
- helium-strong star
- P-strong star
- Regulus (alpha Leo)
- Rigel (beta Ori, HR 1713)
- sdB
- Spica (alpha Vir, HR 5056)
- Vela X-1 (HD 77581, 3U 0900-40)
- central star of planetary nebula (planerary nuclei, CPN)
- PG 1159 star (pre-degenerate)
- ultraviolet star
- ultraviolet-bright star
- F star
- Alpha Caeli (HR 1502)
- Alpha Chamaeleontis (HR 3318)
- Alpha Comae Berenices (HR 4969)
- Alpha Fornacis (HR 963)
- Alpha Leporis (HR 1865)
- Alpha Persei (HR 1017)
- Beta Delphini (HR 7882)
- Canopus (alpha Car, HR 2326)
- Delta Scuti (HR 7020)
- Polaris (HR 424, Pole star, North Star)
- post-asymptotic branch star
- Procyon (alpha CMi, HR 2943)
- luminous blue variable (S Dor variable, Hubble-Sandage variable)
- O star
- AE Aurigae
- Mintaka
- O((f))
- O(f)
- Oe
- Oef
- Of star
- Plaskett's star (HD 47129)
- sdO
- Theta2 Orionis (2U 0525-06)
- Zeta Ophiuchi
- Zeta Pup
- Zeta Puppis (HR 3165)
- peculiar star
- runaway star
- white dwarf (D, wd)
- Wolf-Rayet
- [WR] star
- CV Serpentis
- WC star
- Gamma Velorum (HR 3207)
- WN star
- WO star
- A star
- emission line star
- Ae star
- Be star
- H and K emission line star
- Me star
- nova
- O((f))
- O(f)
- Oe
- Oef
- Of star
- P Cygni star
- shell star
- 17 Leporis
- Pleione (28 Tau)
- supernova
- T Tauri star (nebular variable)
- UV Ceti star
- Wolf-Rayet
- [WR] star
- CV Serpentis
- WC star
- Gamma Velorum (HR 3207)
- WN star
- WO star
- field star
- fundamental star
- giant
- Aldebaran (alpha Tau, HR 1457)
- Alpha Antliae (HR 4104)
- Alpha Apodis (HR 5470)
- Alpha Arietis (HR 617)
- Alpha Cassiopeiae (HR 168)
- Alpha Chamaeleontis (HR 3318)
- Alpha Doradus (HR 1465)
- Alpha Equulei (HR 8131)
- Alpha Horologii (HR 1326)
- Alpha Indi (HR 7869)
- Alpha Lupi (HR 5469)
- Alpha Monocerotis (HR 2970)
- Alpha Ophiuchi (HR 6556)
- Alpha Phoenicis (HR 99)
- Alpha Pyxidis (HR 3468)
- Alpha Scuti (HR 6973)
- Alpha Serpentis (HR 5854)
- Alpha Sextantis (HR 3981)
- Alpha Tucanae (HR 8502)
- Alpha Vulpeculae (HR 7405)
- Bellatrix (gamma Orionis)
- Beta Cancri (HR 3249)
- Beta Ceti (HR 188)
- Beta Crucis (HR 4853)
- Beta Herculis (HR 6148)
- Beta Volantis (HR 3347)
- blue giant
- Capella (HR 1708, Alpha Aurigae)
- CN-strong star
- Delta Crateris (HR 4382)
- Delta Scuti (HR 7020)
- Epsilon Sagittarii (HR 6879)
- Eta Piscium (HR 437)
- Gamma Corvi (HR 4662)
- Gamma Draconis (HR 6705)
- Gamma Microscopii (HR 8039)
- Gamma Normae (HR 6072)
- Gamma Sagittae (HR 7635)
- heavy-metal star
- barium star (Ba star, Ba II star)
- S star
- HR 4247
- NML Cygnus (IRC+40448)
- Nu Octantis (HR 8254)
- oxygen-rich giant
- Plaskett's star (HD 47129)
- red giant
- Mira (omicron Cet)
- Mira (omicron Cet)
- Spica (alpha Vir, HR 5056)
- weak G-band star
- white giant
- yellow giant
- HD 141569
- high-velocity star
- HR 4796A
- hydrogen-deficient star
- late star
- carbon star
- CN-strong star
- G star
- alpha Centauri (Rigil Kent, HR 5459)
- Alpha Equulei (HR 8131)
- Alpha Mensae (HR 2261)
- Alpha Reticuli (HR 1336)
- Beta Herculis (HR 6148)
- Beta Hydri (HR 98)
- Capella (HR 1708, Alpha Aurigae)
- CH star
- Delta Crateris (HR 4382)
- Eta Piscium (HR 437)
- Gamma Microscopii (HR 8039)
- Gamma Normae (HR 6072)
- RW Aurigae
- Sun
- weak G-band star
- yellow giant
- yellow supergiant
- Beta Aquarii (HR 8232)
- Beta Camelopardalis (HR 1603)
- H and K emission line star
- K star
- Aldebaran (alpha Tau, HR 1457)
- Alpha Antliae (HR 4104)
- Alpha Apodis (HR 5470)
- Alpha Arietis (HR 617)
- Alpha Cassiopeiae (HR 168)
- Alpha Horologii (HR 1326)
- Alpha Hydrae (HR 3748, Alphard)
- Alpha Indi (HR 7869)
- Alpha Lyncis (HR 3705)
- Alpha Monocerotis (HR 2970)
- Alpha Phoenicis (HR 99)
- Alpha Scuti (HR 6973)
- Alpha Serpentis (HR 5854)
- Alpha Trianguli Australis (HR 6217)
- Alpha Tucanae (HR 8502)
- Arcturus (Alpha Boötis, HR 5340)
- Beta Arae (HR 6461)
- Beta Cancri (HR 3249)
- Beta Ceti (HR 188)
- Beta Volantis (HR 3347)
- dKe star
- Epsilon Eri
- Epsilon Pegasi (HR 8308)
- Gamma Draconis (HR 6705)
- HR 4247
- Nu Octantis (HR 8254)
- Pollux (beta Gem, HR 2990)
- M star
- Alpha Vulpeculae (HR 7405)
- Barnard's star
- dMe star
- UV Ceti (Luyten 726-8 B)
- Gamma Sagittae (HR 7635)
- Kapteyn's star (HD 33793, CD -45 1841)
- Kruger 60 AB
- Me star
- MS star
- NML Cygnus (IRC+40448)
- red giant
- Mira (omicron Cet)
- Mira (omicron Cet)
- S star
- semiregular variable
- Betelgeuse (alpha Ori)
- RV Tauri star
- Betelgeuse (alpha Ori)
- T Tauri star (nebular variable)
- weak line star
- low-velocity star
- manganese star
- metal-poor star
- horizontal branch star
- RR Lyrae star (cluster variable, cluster variable)
- horizontal branch star
- metal-rich star (metal-strong star, CN-strong star)
- naked eye star
- Achernar (alpha Eridani, HR 472)
- Aldebaran (alpha Tau, HR 1457)
- Alpha Andromedae (HR 15)
- Alpha Antliae (HR 4104)
- Alpha Apodis (HR 5470)
- Alpha Arietis (HR 617)
- Alpha Caeli (HR 1502)
- Alpha Cassiopeiae (HR 168)
- alpha Centauri (Rigil Kent, HR 5459)
- Alpha Cephei (HR 8162)
- Alpha Chamaeleontis (HR 3318)
- Alpha Circini (HR 5463)
- Alpha Columbae (HR 1956)
- Alpha Coronae Autralis (HR 7254)
- Alpha Coronae Borealis (HR 5793)
- Alpha Doradus (HR 1465)
- Alpha Equulei (HR 8131)
- Alpha Fornacis (HR 963)
- Alpha Gruis (HR 8425)
- Alpha Horologii (HR 1326)
- Alpha Hydrae (HR 3748, Alphard)
- Alpha Indi (HR 7869)
- Alpha Lacertae (HR 8585)
- Alpha Leonis (HR 3982)
- Alpha Leporis (HR 1865)
- Alpha Lupi (HR 5469)
- Alpha Lyncis (HR 3705)
- Alpha Monocerotis (HR 2970)
- Alpha Muscae (HR 4798)
- Alpha Ophiuchi (HR 6556)
- Alpha Pavonis (HR 7790)
- Alpha Persei (HR 1017)
- Alpha Phoenicis (HR 99)
- Alpha Pictoris (HR 2550)
- Alpha Pyxidis (HR 3468)
- Alpha Reticuli (HR 1336)
- Alpha Sculptoris (HR 280)
- Alpha Scuti (HR 6973)
- Alpha Serpentis (HR 5854)
- Alpha Sextantis (HR 3981)
- Alpha Telescopii (HR 6897)
- Alpha Trianguli Australis (HR 6217)
- Alpha Tucanae (HR 8502)
- Alpha Vulpeculae (HR 7405)
- Altair (alpha Aql, HR 7557)
- Antares (alpha Sco, HR 6134)
- Arcturus (Alpha Boötis, HR 5340)
- Beta Aquarii (HR 8232)
- Beta Arae (HR 6461)
- Beta Camelopardalis (HR 1603)
- Beta Cancri (HR 3249)
- Beta Ceti (HR 188)
- Beta Crucis (HR 4853)
- Beta Delphini (HR 7882)
- Beta Herculis (HR 6148)
- Beta Hydri (HR 98)
- Beta Librae (HR 5685)
- Beta Trianguli (HR 622)
- Beta Volantis (HR 3347)
- Canopus (alpha Car, HR 2326)
- Canum Venaticorum (HR 4915)
- Capella (HR 1708, Alpha Aurigae)
- Delta Capricorni (HR 8322)
- Delta Crateris (HR 4382)
- Delta Scuti (HR 7020)
- Deneb (alpha Cyg, HR 7924)
- Epsilon Pegasi (HR 8308)
- Epsilon Sagittarii (HR 6879)
- Epsilon Ursae Majoris (HR 4905)
- Eta Piscium (HR 437)
- Fomalhaut (alpha PsA, HR 8728)
- Gamma Corvi (HR 4662)
- Gamma Draconis (HR 6705)
- Gamma Microscopii (HR 8039)
- Gamma Normae (HR 6072)
- Gamma Sagittae (HR 7635)
- Gamma Velorum (HR 3207)
- HR 4247
- Mira (omicron Cet)
- Nu Octantis (HR 8254)
- Polaris (HR 424, Pole star, North Star)
- Pollux (beta Gem, HR 2990)
- Procyon (alpha CMi, HR 2943)
- Rigel (beta Ori, HR 1713)
- Sirius (alpha CMa, Dog Star, HR 2491)
- Spica (alpha Vir, HR 5056)
- Vega (alpha Lyr, HR 7001)
- Zeta Puppis (HR 3165)
- neutron star
- pulsar (PSR)
- binary pulsar
- Hulse-Taylor pulsar (PSR 1913+16)
- Crab pulsar (NP 0532)
- PSR B 1257+12
- Vela pulsar (PSR 0833-45, Vela X)
- X-ray pulsar
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- Hercules X-1 (3U 1653+35)
- binary pulsar
- ROSAT PRC97-32
- pulsar (PSR)
- old star
- Population I star (arm population, disk star)
- Population I Cepheid (classical Cepheid, young disk Cepheid)
- Delta Cephei
- Eta Aquilae
- Polaris (HR 424, Pole star, North Star)
- Sun
- Population I Cepheid (classical Cepheid, young disk Cepheid)
- Population II star (halo star)
- blue halo star
- blue horizontal-branch star (HZ star)
- field horizontal branch star
- Population II Cepheid (W Virginis star)
- Population III star
- program star
- radio star
- flare star (UV Ceti star)
- Proxima Centauri
- UV Ceti (Luyten 726-8 B)
- Wolf 359
- pulsar (PSR)
- binary pulsar
- Hulse-Taylor pulsar (PSR 1913+16)
- Crab pulsar (NP 0532)
- PSR B 1257+12
- Vela pulsar (PSR 0833-45, Vela X)
- X-ray pulsar
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- Hercules X-1 (3U 1653+35)
- binary pulsar
- flare star (UV Ceti star)
- spectrum variable
- subdwarf (sd)
- Kapteyn's star (HD 33793, CD -45 1841)
- sdB
- sdO
- subgiant
- Achernar (alpha Eridani, HR 472)
- Alpha Andromedae (HR 15)
- Alpha Columbae (HR 1956)
- Alpha Gruis (HR 8425)
- Alpha Muscae (HR 4798)
- Alpha Pavonis (HR 7790)
- Alpha Pictoris (HR 2550)
- Alpha Telescopii (HR 6897)
- Beta Delphini (HR 7882)
- Beta Hydri (HR 98)
- Procyon (alpha CMi, HR 2943)
- supergiant
- Alpha Persei (HR 1017)
- Beta Arae (HR 6461)
- blue supergiant
- Rigel (beta Ori, HR 1713)
- Zeta Puppis (HR 3165)
- Canopus (alpha Car, HR 2326)
- Epsilon Pegasi (HR 8308)
- Polaris (HR 424, Pole star, North Star)
- post-asymptotic branch star
- R Coronae Borealis variable
- red supergiant
- Antares (alpha Sco, HR 6134)
- Betelgeuse (alpha Ori)
- Vela X-1 (HD 77581, 3U 0900-40)
- yellow supergiant
- Beta Aquarii (HR 8232)
- Beta Camelopardalis (HR 1603)
- triple star
- 40 Eridani
- Gamma Velorum (HR 3207)
- variable
- Be star
- bright blue variable
- irregular variable
- cataclysmic variable (eruptive variable, explosive variable, CV)
- flare star (UV Ceti star)
- Proxima Centauri
- UV Ceti (Luyten 726-8 B)
- Wolf 359
- nova
- pulsating nova
- R Coronae Borealis variable
- supernova
- flare star (UV Ceti star)
- T Tauri star (nebular variable)
- cataclysmic variable (eruptive variable, explosive variable, CV)
- luminous blue variable (S Dor variable, Hubble-Sandage variable)
- periodic variable
- beta Cephei star (beta Canis Majoris star)
- Cepheid
- dwarf Cepheid (delta Scuti star, ultrashort-period Cepheid)
- Population I Cepheid (classical Cepheid, young disk Cepheid)
- Delta Cephei
- Eta Aquilae
- Polaris (HR 424, Pole star, North Star)
- Population II Cepheid (W Virginis star)
- eclipsing binary
- AS Eri
- beta Lyrae star
- beta Persei star
- Algol (beta Per, Demon star)
- BM Orionis
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- CV Serpentis
- DQ Herculis (Nova Herculis 1934)
- epsilon Aurigae
- Hercules X-1 (3U 1653+35)
- S Doradus
- Scorpius X-1
- Vela X-1 (HD 77581, 3U 0900-40)
- VV Cephei star
- W Ursae Majoris star
- long-period variable (red variable, Mira variable)
- Mira (omicron Cet)
- Mira (omicron Cet)
- RR Lyrae star (cluster variable, cluster variable)
- RV Tau variable
- semiregular variable
- Betelgeuse (alpha Ori)
- RV Tauri star
- Betelgeuse (alpha Ori)
- symbiotic star (combination variable)
- Universe
- X-ray source
- Cassiopeia A (3C 461, 3U 2321+58)
- Cen X-4
- Centaurus A (3U 1322-42, NGC 5128)
- Centaurus cluster (3U 1247-41)
- Circinus X-1 (3U 1516-56)
- Coma cluster (Coma X-1, Abell 1656)
- Coma X-1 (3U 1257+28)
- Cygnus A (3C 405, 2U 1957+40)
- Cygnus Loop (Veil Nebula, NG6 6992, Cygnus X-5)
- Cygnus X-1 (3U 1956+35)
- Cygnus X-2 (3U 2142+38)
- Cygnus X-3 (2U 2030+40)
- M 87 (3C 274, Virgo A, 2U 1228+12)
- NGC 1275 (3U 0316+41, Perseus X-1, Perseus A)
- North Polar Spur
- Puppis A (2U 0821-42)
- Scorpius X-1
- transient X-ray source
- Vela X-1 (HD 77581, 3U 0900-40)
- collection of particles
- phase of matter
- gas
- barotropic gas
- ideal gas (perfect gas)
- interstellar gas
- plasma
- degenerate gas (Fermi gas)
- liquid
- solid
- metal
- actinide
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- protactinium
- thorium
- transuranium element
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- berkelium
- californium
- curium
- einsteinium
- fermium
- lawrencium
- mendelevium
- neptunium
- nobelium
- plutonium
- transactinide
- americium (Am, 8S7/2 in ground state)
- uranium
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinide
- metallic hydrogen
- quantum solid
- metal
- ylem
- gas
- phase of matter
- particle
- antiparticle
- antineutrino
- antineutron
- antiproton
- antiquark
- positron (antielectron)
- boson
- axion
- Bose-Einstein nucleus
- 4N nucleus (even-even nucleus)
- carrier boson (force carrier)
- gluon
- graviton
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- vector boson (IVB)
- Goldstone boson
- Higgs boson
- meson
- positronium
- charged particle
- antiproton
- antiquark
- cosmic rays (corpuscular radiation)
- deuteron (d)
- electron
- ionized methylidyne (CH+)
- muon (μ)
- nucleus
- Bose-Einstein nucleus
- 4N nucleus (even-even nucleus)
- deuteron (d)
- even-odd nucleus
- Fermi-Dirac nuclei
- isomer
- isotone
- isotope
- nuclide
- proton (p)
- triton (T)
- Bose-Einstein nucleus
- pi+
- pi-
- positron (antielectron)
- proton (p)
- quark
- tau (τ)
- triton (T)
- element (atom)
- column grouped element
- alkali Earth metal (group II element)
- alkali metal (group I element)
- cesium
- francium
- lithium (Li, 2S1/2 in ground state)
- potassium (K, 2S1/2 in ground state, kalium from Greek)
- potassium 38 (38K)
- potassium 39 (39K)
- potassium 40 (40K)
- potassium 41 (41K)
- potassium 42 (42K)
- potassium 43 (43K)
- potassium 44 (44K)
- potassium 45 (45K)
- rubidium
- sodium (Na, 2S1/2 in ground state, natrium from Latin)
- cesium
- group III element
- aluminium (Al, 2P1/2 in ground state)
- aluminium 26 (26Al)
- aluminium 27 (27Al)
- aluminium 28 (28Al)
- aluminium 29 (29Al)
- boron (B, 2P1/2 in ground state)
- gallium
- indium
- thallium
- aluminium (Al, 2P1/2 in ground state)
- group IV element
- carbon (C, 3P0 in ground state)
- germanium
- lead
- silicon (Si, 3P0 in ground state)
- silicon 28 (28Si)
- silicon 29 (29Si)
- silicon 30 (30Si)
- silicon 31 (31Si)
- silicon 32 (32Si)
- tin
- carbon (C, 3P0 in ground state)
- group V element (pnictogen)
- antimony (Sb, stibium from latin, 4S3/2 in ground state)
- antimony 119 (119Sb)
- antimony 120 (120Sb)
- antimony 120m (120mSb)
- antimony 121 (121Sb)
- antimony 122 (122Sb)
- antimony 123 (123Sb)
- antimony 124 (124Sb)
- antimony 125 (125Sb)
- antimony 126 (126Sb)
- antimony 127 (127Sb)
- arsenic (As, 4S3/2 in ground state)
- arsenic 71 (71As)
- arsenic 72 (72As)
- arsenic 73 (73As)
- arsenic 74 (74As)
- arsenic 75 (75As)
- arsenic 76 (76As)
- arsenic 77 (77As)
- bismuth
- nitrogen (N, 4S3/2 in ground state)
- nitrogen 13 (13N)
- nitrogen 14 (14N)
- nitrogen 15 (15N)
- nitrogen 16 (16N)
- nitrogen 17 (17N)
- phosphorus (P, 4S3/2 in ground state)
- phosphorus 30 (30P)
- phosphorus 31 (31P)
- phosphorus 32 (32P)
- phosphorus 33 (33P)
- antimony (Sb, stibium from latin, 4S3/2 in ground state)
- group VI element (chalcogen)
- halogen (group VII element)
- astatine
- bromine
- chlorine (Cl, 2P3/2 in ground state)
- chlorine 34m (34Cl)
- chlorine 35 (35Cl)
- chlorine 36 (36Cl)
- chlorine 37 (37Cl)
- chlorine 38 (38Cl)
- chlorine 39 (39Cl)
- chlorine 40 (40Cl)
- fluorine (F, 2P3/2 in ground state)
- fluorine 17 (17F)
- fluorine 18 (18F)
- fluorine 19 (19F)
- fluorine 20 (20F)
- iodine
- astatine
- inert gas (group VIII element, noble gas)
- transition metal
- cadmium
- chromium (Cr, 7S3 in ground state)
- chromium 48 (48Cr)
- chromium 49 (49Cr)
- chromium 50 (50Cr)
- chromium 51 (51Cr)
- chromium 52 (52Cr)
- chromium 53 (53Cr)
- chromium 54 (54Cr)
- chromium 55 (55Cr)
- chromium 56 (56Cr)
- cobalt (Co, 4F9/2 in ground state)
- copper
- gold
- hafnium
- inner transition metal
- actinide
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- protactinium
- thorium
- transuranium element
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- berkelium
- californium
- curium
- einsteinium
- fermium
- lawrencium
- mendelevium
- neptunium
- nobelium
- plutonium
- transactinide
- americium (Am, 8S7/2 in ground state)
- uranium
- actinium (Ac, Ac, 2D3/2 in ground state)
- rare Earth (lanthanide)
- actinide
- iridium
- iron (Fe, 5D4 in ground state, ferrum = iron from Latin)
- manganese (Mn, 6S5/2 in ground state)
- manganese 52 (52Mn)
- manganese 53 (53Mn)
- manganese 54 (54Mn)
- manganese 55 (55Mn)
- manganese 56 (56Mn)
- mercury
- molybdenum
- nickel (Ni, 3F4 in ground state)
- niobium
- osmium
- palladium
- platinum
- rhenium
- rhodium
- ruthenium
- scandium
- silver
- tantalum
- technetium
- titanium (Ti, 3F2 in ground state)
- titanium 44 (44Ti)
- titanium 45 (45Ti)
- titanium 46 (46Ti)
- titanium 47 (47Ti)
- titanium 48 (48Ti)
- titanium 49 (49Ti)
- titanium 50 (50Ti)
- tungsten
- vanadium (V, 4F3/2 in ground state)
- vanadium 47 (V)
- vanadium 48 (V)
- vanadium 49 (V)
- vanadium 50 (50V)
- vanadium 51 (51V)
- yttrium
- zinc
- zirconium
- cadmium
- gaseous element
- chlorine (Cl, 2P3/2 in ground state)
- chlorine 34m (34Cl)
- chlorine 35 (35Cl)
- chlorine 36 (36Cl)
- chlorine 37 (37Cl)
- chlorine 38 (38Cl)
- chlorine 39 (39Cl)
- chlorine 40 (40Cl)
- fluorine (F, 2P3/2 in ground state)
- fluorine 17 (17F)
- fluorine 18 (18F)
- fluorine 19 (19F)
- fluorine 20 (20F)
- hydrogen (H, 2S1/2 in ground state)
- deuterium (D, 2H, hydrogen 2)
- hydrogen 1 (1H)
- tritium (3H, hydrogen 3)
- inert gas (group VIII element, noble gas)
- nitrogen (N, 4S3/2 in ground state)
- nitrogen 13 (13N)
- nitrogen 14 (14N)
- nitrogen 15 (15N)
- nitrogen 16 (16N)
- nitrogen 17 (17N)
- oxygen (O, 3P2 in ground state)
- chlorine (Cl, 2P3/2 in ground state)
- light element
- beryllium (Be, 1S0 in ground state)
- beryllium 10 (10Be)
- beryllium 11 (11Be)
- beryllium 12 (12Be)
- beryllium 14 (14Be)
- beryllium 6 (6Be)
- beryllium 7 (7Be)
- beryllium 8 (8Be)
- beryllium 9 (9Be)
- boron (B, 2P1/2 in ground state)
- helium (He, 1S0 in ground state)
- hydrogen (H, 2S1/2 in ground state)
- deuterium (D, 2H, hydrogen 2)
- hydrogen 1 (1H)
- tritium (3H, hydrogen 3)
- lithium (Li, 2S1/2 in ground state)
- beryllium (Be, 1S0 in ground state)
- liquid element
- metallic element
- alkali earth metal
- barium
- beryllium (Be, 1S0 in ground state)
- beryllium 10 (10Be)
- beryllium 11 (11Be)
- beryllium 12 (12Be)
- beryllium 14 (14Be)
- beryllium 6 (6Be)
- beryllium 7 (7Be)
- beryllium 8 (8Be)
- beryllium 9 (9Be)
- calcium (Ca, 1S0 in ground state)
- calcium 40 (40Ca)
- calcium 41 (41Ca)
- calcium 42 (42Ca)
- calcium 43 (43Ca)
- calcium 44 (44Ca)
- calcium 45 (45Ca)
- calcium 46 (46Ca)
- calcium 47 (47Ca)
- calcium 48 (48Ca)
- calcium 49 (49Ca)
- magnesium (Mg, 1S0 in ground state)
- magnesium 23 (23Mg)
- magnesium 24 (24Mg)
- magnesium 25 (25Mg)
- magnesium 26 (26Mg)
- magnesium 27 (27Mg)
- magnesium 28 (28Mg)
- radium
- strontium
- barium
- alkali metal (group I element)
- cesium
- francium
- lithium (Li, 2S1/2 in ground state)
- potassium (K, 2S1/2 in ground state, kalium from Greek)
- potassium 38 (38K)
- potassium 39 (39K)
- potassium 40 (40K)
- potassium 41 (41K)
- potassium 42 (42K)
- potassium 43 (43K)
- potassium 44 (44K)
- potassium 45 (45K)
- rubidium
- sodium (Na, 2S1/2 in ground state, natrium from Latin)
- cesium
- aluminium (Al, 2P1/2 in ground state)
- aluminium 26 (26Al)
- aluminium 27 (27Al)
- aluminium 28 (28Al)
- aluminium 29 (29Al)
- bismuth
- gallium
- indium
- lead
- metal
- actinide
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- protactinium
- thorium
- transuranium element
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- berkelium
- californium
- curium
- einsteinium
- fermium
- lawrencium
- mendelevium
- neptunium
- nobelium
- plutonium
- transactinide
- americium (Am, 8S7/2 in ground state)
- uranium
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinide
- thallium
- tin
- transition metal
- cadmium
- chromium (Cr, 7S3 in ground state)
- chromium 48 (48Cr)
- chromium 49 (49Cr)
- chromium 50 (50Cr)
- chromium 51 (51Cr)
- chromium 52 (52Cr)
- chromium 53 (53Cr)
- chromium 54 (54Cr)
- chromium 55 (55Cr)
- chromium 56 (56Cr)
- cobalt (Co, 4F9/2 in ground state)
- copper
- gold
- hafnium
- inner transition metal
- actinide
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- protactinium
- thorium
- transuranium element
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- berkelium
- californium
- curium
- einsteinium
- fermium
- lawrencium
- mendelevium
- neptunium
- nobelium
- plutonium
- transactinide
- americium (Am, 8S7/2 in ground state)
- uranium
- actinium (Ac, Ac, 2D3/2 in ground state)
- rare Earth (lanthanide)
- actinide
- iridium
- iron (Fe, 5D4 in ground state, ferrum = iron from Latin)
- manganese (Mn, 6S5/2 in ground state)
- manganese 52 (52Mn)
- manganese 53 (53Mn)
- manganese 54 (54Mn)
- manganese 55 (55Mn)
- manganese 56 (56Mn)
- mercury
- molybdenum
- nickel (Ni, 3F4 in ground state)
- niobium
- osmium
- palladium
- platinum
- rhenium
- rhodium
- ruthenium
- scandium
- silver
- tantalum
- technetium
- titanium (Ti, 3F2 in ground state)
- titanium 44 (44Ti)
- titanium 45 (45Ti)
- titanium 46 (46Ti)
- titanium 47 (47Ti)
- titanium 48 (48Ti)
- titanium 49 (49Ti)
- titanium 50 (50Ti)
- tungsten
- vanadium (V, 4F3/2 in ground state)
- vanadium 47 (V)
- vanadium 48 (V)
- vanadium 49 (V)
- vanadium 50 (50V)
- vanadium 51 (51V)
- yttrium
- zinc
- zirconium
- cadmium
- alkali earth metal
- metalloid element
- metallic metalloid
- antimony (Sb, stibium from latin, 4S3/2 in ground state)
- antimony 119 (119Sb)
- antimony 120 (120Sb)
- antimony 120m (120mSb)
- antimony 121 (121Sb)
- antimony 122 (122Sb)
- antimony 123 (123Sb)
- antimony 124 (124Sb)
- antimony 125 (125Sb)
- antimony 126 (126Sb)
- antimony 127 (127Sb)
- germanium
- polonium
- antimony (Sb, stibium from latin, 4S3/2 in ground state)
- nonmetallic metalloid
- arsenic (As, 4S3/2 in ground state)
- arsenic 71 (71As)
- arsenic 72 (72As)
- arsenic 73 (73As)
- arsenic 74 (74As)
- arsenic 75 (75As)
- arsenic 76 (76As)
- arsenic 77 (77As)
- boron (B, 2P1/2 in ground state)
- silicon (Si, 3P0 in ground state)
- silicon 28 (28Si)
- silicon 29 (29Si)
- silicon 30 (30Si)
- silicon 31 (31Si)
- silicon 32 (32Si)
- tellurium
- arsenic (As, 4S3/2 in ground state)
- metallic metalloid
- nonmetallic element
- carbon (C, 3P0 in ground state)
- halogen (group VII element)
- astatine
- bromine
- chlorine (Cl, 2P3/2 in ground state)
- chlorine 34m (34Cl)
- chlorine 35 (35Cl)
- chlorine 36 (36Cl)
- chlorine 37 (37Cl)
- chlorine 38 (38Cl)
- chlorine 39 (39Cl)
- chlorine 40 (40Cl)
- fluorine (F, 2P3/2 in ground state)
- fluorine 17 (17F)
- fluorine 18 (18F)
- fluorine 19 (19F)
- fluorine 20 (20F)
- iodine
- astatine
- hydrogen (H, 2S1/2 in ground state)
- deuterium (D, 2H, hydrogen 2)
- hydrogen 1 (1H)
- tritium (3H, hydrogen 3)
- inert gas (group VIII element, noble gas)
- nitrogen (N, 4S3/2 in ground state)
- nitrogen 13 (13N)
- nitrogen 14 (14N)
- nitrogen 15 (15N)
- nitrogen 16 (16N)
- nitrogen 17 (17N)
- nonmetal
- oxygen (O, 3P2 in ground state)
- phosphorus (P, 4S3/2 in ground state)
- phosphorus 30 (30P)
- phosphorus 31 (31P)
- phosphorus 32 (32P)
- phosphorus 33 (33P)
- selenium
- sulfur (S, 3P2 in ground state)
- carbon (C, 3P0 in ground state)
- planetary element
- atmophile element
- bromine
- carbon (C, 3P0 in ground state)
- hydrogen (H, 2S1/2 in ground state)
- deuterium (D, 2H, hydrogen 2)
- hydrogen 1 (1H)
- tritium (3H, hydrogen 3)
- inert gas (group VIII element, noble gas)
- iodine
- nitrogen (N, 4S3/2 in ground state)
- nitrogen 13 (13N)
- nitrogen 14 (14N)
- nitrogen 15 (15N)
- nitrogen 16 (16N)
- nitrogen 17 (17N)
- oxygen (O, 3P2 in ground state)
- bromine
- chalcophile element
- cadmium
- chromium (Cr, 7S3 in ground state)
- chromium 48 (48Cr)
- chromium 49 (49Cr)
- chromium 50 (50Cr)
- chromium 51 (51Cr)
- chromium 52 (52Cr)
- chromium 53 (53Cr)
- chromium 54 (54Cr)
- chromium 55 (55Cr)
- chromium 56 (56Cr)
- manganese (Mn, 6S5/2 in ground state)
- manganese 52 (52Mn)
- manganese 53 (53Mn)
- manganese 54 (54Mn)
- manganese 55 (55Mn)
- manganese 56 (56Mn)
- selenium
- silver
- sulfur (S, 3P2 in ground state)
- zinc
- cadmium
- lithophile element
- calcium (Ca, 1S0 in ground state)
- calcium 40 (40Ca)
- calcium 41 (41Ca)
- calcium 42 (42Ca)
- calcium 43 (43Ca)
- calcium 44 (44Ca)
- calcium 45 (45Ca)
- calcium 46 (46Ca)
- calcium 47 (47Ca)
- calcium 48 (48Ca)
- calcium 49 (49Ca)
- chlorine (Cl, 2P3/2 in ground state)
- chlorine 34m (34Cl)
- chlorine 35 (35Cl)
- chlorine 36 (36Cl)
- chlorine 37 (37Cl)
- chlorine 38 (38Cl)
- chlorine 39 (39Cl)
- chlorine 40 (40Cl)
- magnesium (Mg, 1S0 in ground state)
- magnesium 23 (23Mg)
- magnesium 24 (24Mg)
- magnesium 25 (25Mg)
- magnesium 26 (26Mg)
- magnesium 27 (27Mg)
- magnesium 28 (28Mg)
- potassium (K, 2S1/2 in ground state, kalium from Greek)
- potassium 38 (38K)
- potassium 39 (39K)
- potassium 40 (40K)
- potassium 41 (41K)
- potassium 42 (42K)
- potassium 43 (43K)
- potassium 44 (44K)
- potassium 45 (45K)
- silicon (Si, 3P0 in ground state)
- silicon 28 (28Si)
- silicon 29 (29Si)
- silicon 30 (30Si)
- silicon 31 (31Si)
- silicon 32 (32Si)
- sodium (Na, 2S1/2 in ground state, natrium from Latin)
- calcium (Ca, 1S0 in ground state)
- oceanic element
- accumulating oceanic element
- aluminium (Al, 2P1/2 in ground state)
- aluminium 26 (26Al)
- aluminium 27 (27Al)
- aluminium 28 (28Al)
- aluminium 29 (29Al)
- antimony (Sb, stibium from latin, 4S3/2 in ground state)
- antimony 119 (119Sb)
- antimony 120 (120Sb)
- antimony 120m (120mSb)
- antimony 121 (121Sb)
- antimony 122 (122Sb)
- antimony 123 (123Sb)
- antimony 124 (124Sb)
- antimony 125 (125Sb)
- antimony 126 (126Sb)
- antimony 127 (127Sb)
- boron (B, 2P1/2 in ground state)
- bromine
- cesium
- chlorine (Cl, 2P3/2 in ground state)
- chlorine 34m (34Cl)
- chlorine 35 (35Cl)
- chlorine 36 (36Cl)
- chlorine 37 (37Cl)
- chlorine 38 (38Cl)
- chlorine 39 (39Cl)
- chlorine 40 (40Cl)
- fluorine (F, 2P3/2 in ground state)
- fluorine 17 (17F)
- fluorine 18 (18F)
- fluorine 19 (19F)
- fluorine 20 (20F)
- lithium (Li, 2S1/2 in ground state)
- magnesium (Mg, 1S0 in ground state)
- magnesium 23 (23Mg)
- magnesium 24 (24Mg)
- magnesium 25 (25Mg)
- magnesium 26 (26Mg)
- magnesium 27 (27Mg)
- magnesium 28 (28Mg)
- molybdenum
- potassium (K, 2S1/2 in ground state, kalium from Greek)
- potassium 38 (38K)
- potassium 39 (39K)
- potassium 40 (40K)
- potassium 41 (41K)
- potassium 42 (42K)
- potassium 43 (43K)
- potassium 44 (44K)
- potassium 45 (45K)
- rubidium
- sodium (Na, 2S1/2 in ground state, natrium from Latin)
- sulfur (S, 3P2 in ground state)
- thallium
- uranium
- aluminium (Al, 2P1/2 in ground state)
- recycled oceanic element
- arsenic (As, 4S3/2 in ground state)
- arsenic 71 (71As)
- arsenic 72 (72As)
- arsenic 73 (73As)
- arsenic 74 (74As)
- arsenic 75 (75As)
- arsenic 76 (76As)
- arsenic 77 (77As)
- barium
- beryllium (Be, 1S0 in ground state)
- beryllium 10 (10Be)
- beryllium 11 (11Be)
- beryllium 12 (12Be)
- beryllium 14 (14Be)
- beryllium 6 (6Be)
- beryllium 7 (7Be)
- beryllium 8 (8Be)
- beryllium 9 (9Be)
- cadmium
- calcium (Ca, 1S0 in ground state)
- calcium 40 (40Ca)
- calcium 41 (41Ca)
- calcium 42 (42Ca)
- calcium 43 (43Ca)
- calcium 44 (44Ca)
- calcium 45 (45Ca)
- calcium 46 (46Ca)
- calcium 47 (47Ca)
- calcium 48 (48Ca)
- calcium 49 (49Ca)
- carbon (C, 3P0 in ground state)
- chromium (Cr, 7S3 in ground state)
- chromium 48 (48Cr)
- chromium 49 (49Cr)
- chromium 50 (50Cr)
- chromium 51 (51Cr)
- chromium 52 (52Cr)
- chromium 53 (53Cr)
- chromium 54 (54Cr)
- chromium 55 (55Cr)
- chromium 56 (56Cr)
- copper
- dysprosium
- erbium
- europium
- gadolinium
- germanium
- holmium
- iodine
- iron (Fe, 5D4 in ground state, ferrum = iron from Latin)
- lanthanum
- lutetium
- neodymium
- nickel (Ni, 3F4 in ground state)
- nitrogen (N, 4S3/2 in ground state)
- nitrogen 13 (13N)
- nitrogen 14 (14N)
- nitrogen 15 (15N)
- nitrogen 16 (16N)
- nitrogen 17 (17N)
- palladium
- phosphorus (P, 4S3/2 in ground state)
- phosphorus 30 (30P)
- phosphorus 31 (31P)
- phosphorus 32 (32P)
- phosphorus 33 (33P)
- samarium
- scandium
- selenium
- silicon (Si, 3P0 in ground state)
- silicon 28 (28Si)
- silicon 29 (29Si)
- silicon 30 (30Si)
- silicon 31 (31Si)
- silicon 32 (32Si)
- silver
- strontium
- terbium
- thulium
- vanadium (V, 4F3/2 in ground state)
- vanadium 47 (V)
- vanadium 48 (V)
- vanadium 49 (V)
- vanadium 50 (50V)
- vanadium 51 (51V)
- ytterbium
- zinc
- arsenic (As, 4S3/2 in ground state)
- scavenged oceanic element
- bismuth
- cerium
- cobalt (Co, 4F9/2 in ground state)
- lead
- manganese (Mn, 6S5/2 in ground state)
- manganese 52 (52Mn)
- manganese 53 (53Mn)
- manganese 54 (54Mn)
- manganese 55 (55Mn)
- manganese 56 (56Mn)
- mercury
- tellerium
- thorium
- tin
- bismuth
- unclassified oceanic element
- argon (Ar, 1S0 in ground state)
- gallium
- gold
- hafnium
- helium (He, 1S0 in ground state)
- hydrogen (H, 2S1/2 in ground state)
- deuterium (D, 2H, hydrogen 2)
- hydrogen 1 (1H)
- tritium (3H, hydrogen 3)
- indium
- krypton
- neon (Ne, 1S0 in ground state)
- niobium
- oxygen (O, 3P2 in ground state)
- platinum
- praseodymium
- protactinium
- radium
- radon
- rhenium
- tantalum
- titanium (Ti, 3F2 in ground state)
- titanium 44 (44Ti)
- titanium 45 (45Ti)
- titanium 46 (46Ti)
- titanium 47 (47Ti)
- titanium 48 (48Ti)
- titanium 49 (49Ti)
- titanium 50 (50Ti)
- tungsten
- xenon
- yttrium
- zirconium
- argon (Ar, 1S0 in ground state)
- accumulating oceanic element
- siderophile element
- carbon (C, 3P0 in ground state)
- cobalt (Co, 4F9/2 in ground state)
- germanium
- gold
- iridium
- iron (Fe, 5D4 in ground state, ferrum = iron from Latin)
- nickel (Ni, 3F4 in ground state)
- phosphorus (P, 4S3/2 in ground state)
- phosphorus 30 (30P)
- phosphorus 31 (31P)
- phosphorus 32 (32P)
- phosphorus 33 (33P)
- platinum
- carbon (C, 3P0 in ground state)
- atmophile element
- radioactive element
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- supernova produced radioactive element
- aluminium 26 (26Al)
- actinium (Ac, Ac, 2D3/2 in ground state)
- supernova produced element
- synthetic element
- promethium
- technetium
- transuranium element
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- berkelium
- californium
- curium
- einsteinium
- fermium
- lawrencium
- mendelevium
- neptunium
- nobelium
- plutonium
- transactinide
- americium (Am, 8S7/2 in ground state)
- promethium
- column grouped element
- elementary particle
- carrier boson (force carrier)
- gluon
- graviton
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- vector boson (IVB)
- hadron
- lepton
- parton
- proton (p)
- carrier boson (force carrier)
- fermion
- baryon
- even-odd nucleus
- lepton
- quark
- hypothetical particle
- axion
- dark matter (hidden mass)
- cold dark matter (CDM)
- hot dark matter
- massive compact halo object (MACHO)
- black dwarf
- black hole
- brown dwarf
- neutron star
- pulsar (PSR)
- binary pulsar
- Hulse-Taylor pulsar (PSR 1913+16)
- Crab pulsar (NP 0532)
- PSR B 1257+12
- Vela pulsar (PSR 0833-45, Vela X)
- X-ray pulsar
- Centaurus X-3 (3U 1118-60, Krzeminski's star)
- Hercules X-1 (3U 1653+35)
- binary pulsar
- ROSAT PRC97-32
- pulsar (PSR)
- glueball
- Goldstone boson
- gravitino
- graviton
- Higgs boson
- magnetic monopole
- parton
- shadow matter
- sparticle
- superpartner
- tachyon
- vector boson (IVB)
- massless particle
- gluon
- graviton
- neutrino
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- molecule
- diatomic molecule
- carbon monosulfide (CS)
- carbon monoxide (CO)
- cyanogen radical (CN)
- hydroxyl radical (OH)
- molecular hydrogen (H2)
- molecular oxygen (O2)
- silicon monosulfide (SiS)
- silicon monoxide (SiO)
- sulfur monoxide (SO)
- interstellar molecule
- acetaldehyde (CH3CHO)
- ammonia (NH3)
- carbon monosulfide (CS)
- carbon monoxide (CO)
- carbonyl sulfide (OCS)
- cyanoacetylene (HC3N)
- cyanogen radical (CN)
- dimethyl ether ((CH3)2O)
- ethyl alcohol (C2H5OH)
- ethynyl
- formaldehyde (H2CO)
- formamide (HCONH2)
- formic acid (H2CO2)
- hydrogen cyanide (HCN)
- hydrogen isocyanide (HNC)
- hydrogen sulfide (H2S)
- hydroxyl radical (OH)
- ionized methylidyne (CH+)
- isocyanic acid (HNCO)
- methanimine (H2CNH)
- methanol (CH3OH, methyl alcohol)
- methyl acetylene (CH3C2H)
- methyl cyanide (CH3CN)
- methyl formate (HCOOCH3)
- methylamine (CH3NH2)
- methylidyne (CH)
- molecular hydrogen (H2)
- molecular oxygen (O2)
- silicon monosulfide (SiS)
- silicon monoxide (SiO)
- sulfur monoxide (SO)
- thioformaldehyde (H2CS)
- water vapor (H2O)
- PAH
- diatomic molecule
- neutral particle
- ammonia (NH3)
- antineutrino
- antineutron
- carbon monoxide (CO)
- graviton
- methanol (CH3OH, methyl alcohol)
- molecular hydrogen (H2)
- molecular oxygen (O2)
- neutrino
- neutron
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- pi0
- positronium
- water vapor (H2O)
- radioactive particle
- antineutron
- antiproton
- cosmic rays (corpuscular radiation)
- hyperon
- muon (μ)
- neutron
- positron (antielectron)
- positronium
- radioactive element
- actinium (Ac, Ac, 2D3/2 in ground state)
- actinium 224 (224Ac)
- actinium 225 (225Ac)
- actinium 226 (226Ac)
- actinium 227 (227Ac)
- actinium 228 (228Ac)
- actinium 229 (229Ac)
- americium (Am, 8S7/2 in ground state)
- americium 237 (237Am)
- americium 238 (238Am)
- americium 239 (239Am)
- americium 240 (240Am)
- americium 241 (241Am)
- americium 242 (242Am)
- americium 242m (242mAm)
- americium 243 (243Am)
- americium 244 (244Am)
- americium 245 (245Am)
- supernova produced radioactive element
- aluminium 26 (26Al)
- actinium (Ac, Ac, 2D3/2 in ground state)
- tau (τ)
- triton (T)
- secondary cosmic ray
- virtual particle
- antiparticle
- theoretical celestial body
- celestial body
- person
- satellite
- artificial satellite
- active satellite
- communication satellite
- ESA satellite
- geophysical satellite
- geosynchronous satellite
- ANIK satellite
- GEOS satellite (Geostationary Operational Environmental Satellite)
- GMS satellite
- Meteosat satellite
- TDRSS
- inflatable spacecraft
- Landsat satellite
- lunar spacecraft
- manned spacecraft
- meteorological satellite
- EUMETSAT satellite
- NOAA satellite
- GEOS satellite (Geostationary Operational Environmental Satellite)
- military spacecraft
- NASA satellite
- Cosmic Background Explore (COBE)
- NASDA satellite
- navigation satellite
- recoverable spacecraft
- space telescope
- Sputnik 1
- tethered satellite
- TIROS satellite
- unmanned spacecraft
- natural satellite
- Amalthea (Jupiter V, Barnard's satellite)
- Ariel
- Deimos
- Demeter
- Dione
- Enceladus
- Galilean satellite
- Hades (Jupiter IX)
- Hera (Jupiter VII)
- Hestia (Jupiter VI)
- Hyperion
- Iapetus
- Janus
- Mimas
- Miranda
- Moon
- Nereid
- Oberon
- Pan (Jupiter XI)
- Phobos
- Phoebe
- Poseidon (Jupiter VIII)
- Rhea
- Tethys
- Themis
- Titan (S VI)
- Titania
- Triton
- Umbriel
- artificial satellite
- energy sink
- energy source
- exothermic fusion process
- carbon burning
- helium burning
- hydrogen burning
- carbon cycle (Bethe-Weizsäcker cycle, CNO cycle)
- proton-proton chain (p-p chain)
- neon burning
- oxygen burning
- silicon burning
- gravitational contraction
- spontaneous fission
- exothermic fusion process
- event (world point)
- atomic process
- bound-bound transition
- fluorescence
- spontaneous emission
- stimulated emission (induced emission)
- bound-free transition
- collision
- Coulomb collision
- elastic collision
- inelastic collision
- scattering
- spin-flip collision
- free-free transition
- bremsstrahlung (deceleration radiation, free-free transition)
- inverse bremsstrahlung
- ionization
- recombination
- bound-bound transition
- celestial event
- aurora
- impact event
- periodic celestial event
- active Sun
- equinox
- autumnal equinox
- vernal equinox (First Point of Aries, spring equinox)
- Forbush decrease
- location dependent periodic celestial event
- astronomical horizon event
- culmination (meridian passage)
- lower culmination (culmination below pole)
- upper culmination (culmination above pole)
- meteor shower
- orbital event
- solar cycle
- solstice
- planetary elongation event
- solar event
- era
- Big Bang era
- Big bang crossover effect
- hadron era (hadron barrier)
- inflation era
- lepton era
- matter era (recombination era, decoupling era)
- nucleosynthetic era
- Planck era
- radiation era
- geological era
- Big Bang era
- atomic process
- force
- fundamental force
- electromagnetism
- electroweak (weak force)
- gravity
- strong force (nuclear force)
- fundamental force
- process
- biological process
- chemical process
- physical process
- atomic process
- bound-bound transition
- fluorescence
- spontaneous emission
- stimulated emission (induced emission)
- bound-free transition
- collision
- Coulomb collision
- elastic collision
- inelastic collision
- scattering
- spin-flip collision
- free-free transition
- bremsstrahlung (deceleration radiation, free-free transition)
- inverse bremsstrahlung
- ionization
- recombination
- bound-bound transition
- decay process
- motion
- advance of the perihelion
- axis motion
- direct motion
- diurnal motion
- harmonic motion (periodic motion)
- elliptical orbit
- five-minute oscillations
- wave
- longitudinal wave
- standing wave (stationary wave)
- transverse wave
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- photon (electromagnetic radiation)
- mass motion
- orbit
- elliptical orbit
- hyperbolic orbit
- Keplerian orbit (osculating orbit)
- prograde motion
- proper motion
- recession
- regression of the nodes
- retrograde motion
- rotation
- wave
- longitudinal wave
- standing wave (stationary wave)
- transverse wave
- photon (electromagnetic radiation)
- gamma ray
- infrared (IR)
- far infrared (FIR)
- mid infrared (MIR)
- near infrared (NIR)
- microwave
- optical (light)
- radio
- ultraviolet (UV)
- X-ray
- photon (electromagnetic radiation)
- nuclear process
- fission
- fusion
- endothermic fusion process
- exothermic fusion process
- carbon burning
- helium burning
- hydrogen burning
- carbon cycle (Bethe-Weizsäcker cycle, CNO cycle)
- proton-proton chain (p-p chain)
- neon burning
- oxygen burning
- silicon burning
- nucleosynthesis
- primordial nucleosynthesis (big-bang nucleosynthesis)
- stellar nucleosynthesis
- X-process
- nuclear decay
- nucleosynthetic reaction
- pycnonuclear reaction
- proton-proton chain (p-p chain)
- Urca process
- optical process
- radiation modification
- line broadening
- radiation direction modification
- diffraction
- dispersion
- gravitational lensing (deflection of light)
- refraction
- scattering
- radiation intensity modification
- absorption
- emission
- bremsstrahlung (deceleration radiation, free-free transition)
- fluorescence
- radiative recombination
- recombination radiation
- spontaneous emission
- stimulated emission (induced emission)
- wavelength shift
- cosmological redshift (z)
- Doppler shift
- gravitational redshift (Einstein effect)
- isomer shift
- Lamb shift
- radiation modification
- phase transition
- reaction
- relativity process
- atomic process