M 87 Comparison Table

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physical object > natural object > celestial body > collection of stars > galaxy > elliptical galaxy > giant elliptical galaxy > M 87

Up: giant elliptical galaxy, Messier object, radio galaxy, X-ray source

M 87 comparison table

Subject has purpose has classification criteria is part of is a kind of has catalog has number of star has wavelength is an instance of has synonym has mass has definition has distance has Messier number

giant elliptical galaxy E0 (spherical) to E7 (greatest eccentricity) elliptical galaxy galaxy catalog 10⁶ to 10¹² 10¹³ M_sun (most massive galaxies known) Massive elliptial galaxy which is too far for individual stars to be resolved.

Messier object originally to catalog all objects which could be confused with a comet celestial sphere celestial body Messier catalog an object assigned a number by Charles Messier from Earth

radio galaxy celestial sphere radio source galaxy catalog 10⁶ to 10¹² radio A galaxy that is extremely luminous at radio wavelengths. A radio galaxy is usually a giant elliptical - the largest galaxy in a cluster - and is a strong emitter of synchrotron radiation. M87 and M82 are examples.

X-ray source celestial sphere celestial body X-ray 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.

M 87 originally to catalog all objects which could be confused with a comet E0 (spherical) to E7 (greatest eccentricity) celestial sphere Messier catalog 10⁶ to 10¹² X-ray Messier object Virgo X-1 10¹³ M_sun (most massive galaxies known) A strong radio source. Optically, it is an elliptical galaxy with a luminous blue jet about 1500 pc long. It is also one of the most powerful extragalactic sources of radiation at infrared wavelengths. from Earth 87

Subject	has purpose	has classification criteria	is part of	is a kind of	has catalog	has number of star	has wavelength	is an instance of	has synonym	has mass	has definition	has distance	has Messier number
giant elliptical galaxy		E0 (spherical) to E7 (greatest eccentricity)		elliptical galaxy	galaxy catalog	10⁶ to 10¹²				10¹³ M_sun (most massive galaxies known)	Massive elliptial galaxy which is too far for individual stars to be resolved.
Messier object	originally to catalog all objects which could be confused with a comet		celestial sphere	celestial body	Messier catalog						an object assigned a number by Charles Messier	from Earth
radio galaxy			celestial sphere	radio source	galaxy catalog	10⁶ to 10¹²	radio				A galaxy that is extremely luminous at radio wavelengths. A radio galaxy is usually a giant elliptical - the largest galaxy in a cluster - and is a strong emitter of synchrotron radiation. M87 and M82 are examples.
X-ray source			celestial sphere	celestial body			X-ray				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.
M 87	originally to catalog all objects which could be confused with a comet	E0 (spherical) to E7 (greatest eccentricity)	celestial sphere		Messier catalog	10⁶ to 10¹²	X-ray	Messier object	Virgo X-1	10¹³ M_sun (most massive galaxies known)	A strong radio source. Optically, it is an elliptical galaxy with a luminous blue jet about 1500 pc long. It is also one of the most powerful extragalactic sources of radiation at infrared wavelengths.	from Earth	87

Up: giant elliptical galaxy, Messier object, radio galaxy, X-ray source