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physical object > naked eye object > naked eye star

naked eye star
subject			fact

naked eye star	has been observed for many centuries
	is usually part of asterism
	is a part of celestial sphere
	is a part of Milky Way
	has apparent magnitude brighter than 5
	has definition A star visible without visual aids
	is a kind of star
	is a kind of naked eye object
star	has star surface temperature
	has spectral type
	has V magnitude
	has B magnitude
	has U magnitude
	has position on celestial sphere from the point of view of Earth
	has parallax from the point of view of Earth's orbit
	has proper motion
	has radiation at surface which is diffused out from the hotter core
	has energy source gravitational contraction and or fusion
	has energy production which takes place primarily within the core
	has surface density which depends on luminosity class
	has surface temperature greater than 1000 Kelvin
	has absolute magnitude
	has age
	has catalog star catalog
	has material hydrogen, helium
	has velocity determined from proper motion and radial velocity
	has mass greater than 0.08 the sun's mass
celestial body	has spectra
physical object	has location or center of gravity
	has angular momentum
	has momentum
	has temperature
	has volume
	has extent

Kinds of naked eye star :

• Achernar (13 facts) (alpha Eridani, HR 472)
• Aldebaran (13 facts) (alpha Tau, HR 1457) - A K5 III subgiant (a foreground star in the Hyades). It has a faint M2 V companion. It is now known to be slowly and irregularly variable.
• Alpha Andromedae (10 facts) (HR 15)
• Alpha Antliae (10 facts) (HR 4104)
• Alpha Apodis (10 facts) (HR 5470)
• Alpha Arietis (10 facts) (HR 617)
• Alpha Caeli (10 facts) (HR 1502)
• Alpha Cassiopeiae (10 facts) (HR 168)
• alpha Centauri (16 facts) (Rigil Kent, HR 5459) - A binary star whose components have G2 V and K5 V spectral types. The nearest star system to the Sun and the third brightest star in the night sky.
• Alpha Cephei (10 facts) (HR 8162)
• Alpha Chamaeleontis (10 facts) (HR 3318)
• Alpha Circini (9 facts) (HR 5463)
• Alpha Columbae (10 facts) (HR 1956)
• Alpha Coronae Autralis (10 facts) (HR 7254)
• Alpha Coronae Borealis (10 facts) (HR 5793)
• Alpha Doradus (10 facts) (HR 1465)
• Alpha Equulei (10 facts) (HR 8131)
• Alpha Fornacis (10 facts) (HR 963)
• Alpha Gruis (10 facts) (HR 8425)
• Alpha Horologii (10 facts) (HR 1326)
• Alpha Hydrae (11 facts) (HR 3748, Alphard)
• Alpha Indi (10 facts) (HR 7869)
• Alpha Lacertae (10 facts) (HR 8585)
• Alpha Leonis (10 facts) (HR 3982)
• Alpha Leporis (9 facts) (HR 1865)
• Alpha Lupi (10 facts) (HR 5469)
• Alpha Lyncis (10 facts) (HR 3705)
• Alpha Monocerotis (10 facts) (HR 2970)
• Alpha Muscae (10 facts) (HR 4798)
• Alpha Ophiuchi (10 facts) (HR 6556)
• Alpha Pavonis (10 facts) (HR 7790)
• Alpha Persei (10 facts) (HR 1017)
• Alpha Phoenicis (10 facts) (HR 99)
• Alpha Pictoris (10 facts) (HR 2550)
• Alpha Pyxidis (10 facts) (HR 3468)
• Alpha Reticuli (10 facts) (HR 1336)
• Alpha Sculptoris (10 facts) (HR 280)
• Alpha Scuti (10 facts) (HR 6973)
• Alpha Serpentis (10 facts) (HR 5854)
• Alpha Sextantis (10 facts) (HR 3981)
• Alpha Telescopii (10 facts) (HR 6897)
• Alpha Trianguli Australis (10 facts) (HR 6217)
• Alpha Tucanae (10 facts) (HR 8502)
• Alpha Vulpeculae (10 facts) (HR 7405)
• Altair (14 facts) (alpha Aql, HR 7557) - A bright A7 V star.
• Antares (13 facts) (alpha Sco, HR 6134) - A red M1 Ib supergiant. It has a B3 V companion, which is a radio source.
• Arcturus (13 facts) (Alpha Boötis, HR 5340) - A beautiful orange star that is the brightest in the constellation Bootes and the fourth brightest in the night sky. It lies 34 light-years away and is a member of the thick-disk population. Historically, Arcturus is famous because it was one of the first stars to have its proper motion measured., An old subgiant disk star (K2 IIIp, m_v = 0.06) about 11 pc distant.
• Beta Aquarii (9 facts) (HR 8232)
• Beta Arae (10 facts) (HR 6461)
• Beta Camelopardalis (9 facts) (HR 1603)
• Beta Cancri (10 facts) (HR 3249)
• Beta Ceti (10 facts) (HR 188)
• Beta Crucis (10 facts) (HR 4853)
• Beta Delphini (10 facts) (HR 7882)
• Beta Herculis (10 facts) (HR 6148)
• Beta Hydri (10 facts) (HR 98)
• Beta Librae (10 facts) (HR 5685)
• Beta Trianguli (10 facts) (HR 622)
• Beta Volantis (10 facts) (HR 3347)
• Canopus (14 facts) (alpha Car, HR 2326) - A supergiant, the second brightest star in the southern sky.
• Canum Venaticorum (9 facts) (HR 4915)
• Capella (14 facts) (HR 1708, Alpha Aurigae) - The sixth brightest star in the night sky, consists of two yellow giants. A spectroscopic triple (F8-G0 III, G5 III, M5 V) (1974 parallax 0'.079). It has a high lithium content and a nearly circular orbit. It may be an X-ray source.
• Delta Capricorni (9 facts) (HR 8322)
• Delta Crateris (10 facts) (HR 4382)
• Delta Scuti (10 facts) (HR 7020)
• Deneb (12 facts) (alpha Cyg, HR 7924) - An A2 Ia supergiant at the head of the Northern Cross. Most distant first-magnitude star.
• Epsilon Pegasi (10 facts) (HR 8308)
• Epsilon Sagittarii (10 facts) (HR 6879)
• Epsilon Ursae Majoris (9 facts) (HR 4905)
• Eta Piscium (10 facts) (HR 437)
• Fomalhaut (13 facts) (alpha PsA, HR 8728) - An A star. The brightest star in the constellation Piscis Austrinus.
• Gamma Corvi (10 facts) (HR 4662)
• Gamma Draconis (10 facts) (HR 6705)
• Gamma Microscopii (10 facts) (HR 8039)
• Gamma Normae (10 facts) (HR 6072)
• Gamma Sagittae (10 facts) (HR 7635)
• Gamma Velorum (15 facts) (HR 3207) - A triple system (WC8, B1 IV, O9 I) embedded in the Gum Nebula. It is the brightest Wolf-Rayet star in the sky.
• HR 4247 (9 facts)
• Mira (15 facts) (omicron Cet) - A red giant that varies in brightness as it pulsates. When brightest, Mira is visible to the naked eye; when dimmest, Mira can be viewed only with optical aid. Mira is the prototype of all pulsating red giants, which are called Miras in its honor., A irregular long-period intrinsic variable. It was named Mira ("wonderful") in 1596 by Fabricius, who made the first recorded observations of its brightness fluctuations. Mira is a double star with a faint B companion which is itself variable.
• Nu Octantis (10 facts) (HR 8254)
• Polaris (20 facts) (HR 424, Pole star, North Star) - A supergiant F8 Ib, F3 V visual binary, with an orbital period of thousands of years. The primary (a Cepheid with a pulsation period of 3.97 days) is itself a single-lined spectroscopic double with a period of 29.6 years. There are at least two more faint (12th mag) components of the system.
• Pollux (13 facts) (beta Gem, HR 2990) - A K0 III star.
• Procyon (16 facts) (alpha CMi, HR 2943) - One of the nearest stars, it is the eighth brightest star. An F star. It is a visual binary; its companion is a DF8 white dwarf.
• Rigel (13 facts) (beta Ori, HR 1713) - A blue supergiant. It is a multiple star. The seventh brightest star in the night sky.
• Sirius (16 facts) (alpha CMa, Dog Star, HR 2491) - The brightest star in the sky. Its companion (Sirius B) is a white dwarf of about 0.96 M_sun but only about 0.03 R_sun, the nearest white dwarf to Earth.
• Spica (17 facts) (alpha Vir, HR 5056) - A double-lined spectroscopic binary (B1.5 V, late B). Component A (10.9 M_sun) is a beta Cephei star which seems to be near core hydrogen exhaustion.
• Vega (13 facts) (alpha Lyr, HR 7001) - The fifth brightest star in the night sky.
• Zeta Puppis (10 facts) (HR 3165)

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