4C+55.16
| 4C+55.16 | |
|---|---|
4C+55.16 captured by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 08h 34m 54.90s |
| Declination | +55° 34′ 21.07″ |
| Redshift | 0.241509 |
| Heliocentric radial velocity | 72,403 km/s |
| Distance | 2.845 Gly (872.2 Mpc) |
| Apparent magnitude (V) | 19.45 |
| Apparent magnitude (B) | 20.75 |
| Surface brightness | 18.4 |
| Characteristics | |
| Type | BrClG, S3, E |
| Size | ~442,000 ly (135.5 kpc) (estimated) |
| Apparent size (V) | 0.25' x 0.15' |
| Notable features | Brightest cluster galaxy, radio galaxy |
| Other designations | |
| OGC 443, NVSS J083454+553421, PGC 2506893, OJ+552, DA 251, 2MASS J08345487+5534206, IRCF J083454.9+553421, TXS 0831+557, 6C B083104.6+554441, S4 0831+55 | |
4C+55.16 is an elliptical galaxy, classified type E, located in Ursa Major. The galaxy lies about 2.84 billion light-years from Earth, which means given its apparent dimensions, 4C+55.16 is approximately 442,000 light-years across making it a type-cD galaxy. It is the brightest cluster galaxy (BCG) in a cluster of the same name.