Cygnus X-3 Comparison Table

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physical object > natural object > celestial body > collection of stars > star system > binary star > Cygnus X-3

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Cygnus X-3 comparison table

Subject is part of has surface temperature is an instance of has velocity has surface density has parallax has position on celestial sphere has distance has radiation at surface has abundance has energy source has energy production has catalog has wavelength is a kind of has material has mass has synonym has definition has discovery date has number of star

binary star greater than 1000 Kelvin determined from proper motion and radial velocity which depends on luminosity class from the point of view of Earth's orbit from the point of view of Earth which is diffused out from the hotter core half the stars in the solar neighborhood are members of star systems gravitational contraction and or fusion which takes place primarily within the core star catalog star system hydrogen, helium greater than 0.08 the sun's mass A system of two stars orbiting around a common center of gravity. Visual binaries are those whose components can be resolved telescopically (i.e., angular separation > 0'.5) and which have detectable orbital motion. Astrometric binaries are those whose dual nature can be deduced from their variable proper motion; spectroscopic binaries, those whose dual nature can be deduced from their variable radial velocity. At least half of the stars in the solar neighborhood are members of binary (or multiple) systems. (See photometric binaries; optical pairs.) 2

X-ray source celestial sphere X-ray celestial body A class of celestial objects whose dominant mechanism of energy dissipation is through X-ray emission. Galactic X-ray sources appear optically as starlike objects, peculiar in their ultraviolet intensity, variability (on time scales ranging from milliseconds to weeks), and spectral features. All known compact X-ray sources are members of close binary systems; a current popular model is mass accretion onto a compact object from a massive companion. (Four X-ray sources - all variable - are known to be associated with globular clusters.) The 21 known extended X-ray sources associated with clusters of galaxies seem to be clouds of hot gas trapped in the cluster's gravitational field.

Cygnus X-3 celestial sphere greater than 1000 Kelvin binary star determined from proper motion and radial velocity which depends on luminosity class from the point of view of Earth's orbit from the point of view of Earth 10 kpc which is diffused out from the hotter core half the stars in the solar neighborhood are members of star systems gravitational contraction and or fusion which takes place primarily within the core star catalog X-ray hydrogen, helium greater than 0.08 the sun's mass 2U 2030+40 An X-ray binary. It is also an infrared source, a cosmic ray source, and a strongly variable radio source (interstellar extinction is too high for visible light observations). It is best fitted by a model of an expanding cloud of relativistic electrons emitting synchrotron radiation around a neutron star. 1966 2

Next binary star: detached binary Up: binary star, X-ray source Previous binary star: close binary

Subject	is part of	has surface temperature	is an instance of	has velocity	has surface density	has parallax	has position on celestial sphere	has distance	has radiation at surface	has abundance	has energy source	has energy production	has catalog	has wavelength	is a kind of	has material	has mass	has synonym	has definition	has discovery date	has number of star
binary star		greater than 1000 Kelvin		determined from proper motion and radial velocity	which depends on luminosity class	from the point of view of Earth's orbit	from the point of view of Earth		which is diffused out from the hotter core	half the stars in the solar neighborhood are members of star systems	gravitational contraction and or fusion	which takes place primarily within the core	star catalog		star system	hydrogen, helium	greater than 0.08 the sun's mass		A system of two stars orbiting around a common center of gravity. Visual binaries are those whose components can be resolved telescopically (i.e., angular separation > 0'.5) and which have detectable orbital motion. Astrometric binaries are those whose dual nature can be deduced from their variable proper motion; spectroscopic binaries, those whose dual nature can be deduced from their variable radial velocity. At least half of the stars in the solar neighborhood are members of binary (or multiple) systems. (See photometric binaries; optical pairs.)		2
X-ray source	celestial sphere													X-ray	celestial body				A class of celestial objects whose dominant mechanism of energy dissipation is through X-ray emission. Galactic X-ray sources appear optically as starlike objects, peculiar in their ultraviolet intensity, variability (on time scales ranging from milliseconds to weeks), and spectral features. All known compact X-ray sources are members of close binary systems; a current popular model is mass accretion onto a compact object from a massive companion. (Four X-ray sources - all variable - are known to be associated with globular clusters.) The 21 known extended X-ray sources associated with clusters of galaxies seem to be clouds of hot gas trapped in the cluster's gravitational field.
Cygnus X-3	celestial sphere	greater than 1000 Kelvin	binary star	determined from proper motion and radial velocity	which depends on luminosity class	from the point of view of Earth's orbit	from the point of view of Earth	10 kpc	which is diffused out from the hotter core	half the stars in the solar neighborhood are members of star systems	gravitational contraction and or fusion	which takes place primarily within the core	star catalog	X-ray		hydrogen, helium	greater than 0.08 the sun's mass	2U 2030+40	An X-ray binary. It is also an infrared source, a cosmic ray source, and a strongly variable radio source (interstellar extinction is too high for visible light observations). It is best fitted by a model of an expanding cloud of relativistic electrons emitting synchrotron radiation around a neutron star.	1966	2