Perseus Cluster
| Perseus cluster | |
|---|---|
Chandra X-ray Observatory observations of the central regions of the Perseus galaxy cluster. Image is 284 arcsec across. RA 03h 19m 47.60s Dec +41° 30' 37.00" in Perseus. Observation dates: 13 pointings between August 8, 2002 and October 20, 2004. Color code: Energy (Red 0.3–1.2 keV, Green 1.2-2 keV, Blue 2–7 keV). Instrument: ACIS. | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Perseus |
| Right ascension | 03hh 18m |
| Declination | +41° 30′ |
| Brightest member | NGC 1275 |
| Number of galaxies | >1000 |
| Richness class | 2 |
| Bautz–Morgan classification | II-III |
| Redshift | 0.01790 (5 366 km/s) |
| Distance | 73.6 Mpc (240.05 Mly) h−1 0.705 |
| X-ray flux | 9.1×10−11 erg s−1 cm−2 (2–10 keV) |
| Other designations | |
| Abell 426, NGC 1275 Cluster, LGG 88 | |
The Perseus cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/s and a diameter of 863′. It is one of the most massive objects in the known universe, containing thousands of galaxies immersed in a vast cloud of multimillion-degree gas.