Cygnus A
| Cygnus A | |
|---|---|
False-color radio image at 5 GHz (VLA data) | |
| Observation data (J2000 epoch) | |
| Constellation | Cygnus |
| Right ascension | 19h 59m 28.3566s |
| Declination | +40° 44′ 02.096″ |
| Redshift | 0.056075 ± 0.000067 |
| Distance | 232 Mpc (760 million ly) |
| Group or cluster | Cygnus-A-Cluster |
| Apparent magnitude (V) | 16.22 |
| Characteristics | |
| Type | E |
| Apparent size (V) | 0.549' × 0.457' |
| Other designations | |
| 4C 40.40, 2E 4309, CYG A, W 57, BWE 1957+4035, NRAO 620, 1C 19.01, QSO B1957+405, 3C 405, 1RXS J195928.7+404405, 3C 405.0, 2U 1957+40, 3CR 405, LEDA 63932, 4U 1957+40, VV2000c J195928.3+404402, DA 500, MCG+07-41-003, DB 117, Mills 19+4, VV 72, PGC 63932. | |
Cygnus A (3C 405) is a radio galaxy, one of the strongest radio sources in the sky.