Coma cluster Comparison Table

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physical object > natural object > celestial body > collection of stars > collection of galaxies > galaxy cluster > rich cluster > Coma cluster

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Coma cluster comparison table

Subject has number of galaxie is part of is a kind of has catalog has wavelength has redshift is an instance of has diameter has synonym has mass has definition has distance

rich cluster > 100 galaxy cluster catalog about star systems 1 Mpc Galaxy cluster with 100 or more galaxies within a volume comparable to that of a loose group. Scale of cluster, about 1 Mpc.

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.

Coma cluster 1000 celestial sphere catalog about star systems X-ray z = 0.023 X-ray source 10 million light years Abell 1656 4 × 10¹⁴ M_sun (luminous matter) The nearest massive cluster of galaxies. A symmetric cluster with primarily E and S0 galaxies. Luminous mass 4 × 10¹⁴ M_sun = 8 × 10⁴⁷ g; virial theorem mass about 5 × 10⁴⁸ g; mass needed to bind the cluster about 4 × 10⁴⁹ g. R ≈ 9 × 10²⁴ cm. 300 million light years

Subject	has number of galaxie	is part of	is a kind of	has catalog	has wavelength	has redshift	is an instance of	has diameter	has synonym	has mass	has definition	has distance
rich cluster	> 100		galaxy cluster	catalog about star systems				1 Mpc			Galaxy cluster with 100 or more galaxies within a volume comparable to that of a loose group. Scale of cluster, about 1 Mpc.
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.
Coma cluster	1000	celestial sphere		catalog about star systems	X-ray	z = 0.023	X-ray source	10 million light years	Abell 1656	4 × 10¹⁴ M_sun (luminous matter)	The nearest massive cluster of galaxies. A symmetric cluster with primarily E and S0 galaxies. Luminous mass 4 × 10¹⁴ M_sun = 8 × 10⁴⁷ g; virial theorem mass about 5 × 10⁴⁸ g; mass needed to bind the cluster about 4 × 10⁴⁹ g. R ≈ 9 × 10²⁴ cm.	300 million light years

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