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| physical object > natural object > celestial body > collection of stars > collection of galaxies > galaxy cluster > Perseus cluster | 
| Perseus cluster | ||||
| subject | fact | |||
| Perseus cluster | is a part of Perseus | ![]()  | 
| is a part of Local Supercluster | ![]()  | |
| has redshift z = 0.0183 | ![]()  | |
| has brightest member NGC 1275 | ![]()  | |
| has number of galaxies 500 | ![]()  | |
| has mass 2 × 1015 Msun | ![]()  | |
| has definition A diffuse, irregular cluster (richness class 2) dominated by and centered on the Seyfert galaxy NGC 1275 (Perseus A). Mass required to bind the cluster, greater than 1015 Msun. | ![]()  | |
| is an instance of galaxy cluster | ![]()  | |
| collection of stars | has number of stars | ![]()  | 
| has catalog catalog about star systems | ![]()  | |
| celestial body | has spectra | ![]()  | 
| physical object | has location or center of gravity | ![]()  | 
| has angular momentum | ![]()  | |
| has velocity | ![]()  | |
| has momentum | ![]()  | |
| has temperature | ![]()  | |
| has volume | ![]()  | |
| has extent | ![]()  | |
| has material | ![]()  | 
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