3C 263
| 3C 263 | |
|---|---|
The quasar 3C 263. | |
| Observation data (J2000.0 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 39m 57.0250s |
| Declination | +65° 47′ 49.482″ |
| Redshift | 0.646000 |
| Heliocentric radial velocity | 193,666 km/s |
| Distance | 5.817 Gly |
| Apparent magnitude (V) | 16.32 |
| Apparent magnitude (B) | 16.50 |
| Characteristics | |
| Type | Opt.var; Sy1, LPQ |
| Other designations | |
| DA 305, 4C 66.13, LEDA 2817636, 2E 2503, PG 1137+660, QSO B1137+660, RBS 1014 | |
3C 263 is a radio-loud, lobe-dominated quasar located in the constellation of Ursa Major. It has a redshift of (z) 0.652 and was discovered in 1966 by astronomers. It is known to show evidence of superluminal motion and is located inside the center of a moderate rich galaxy cluster.