NGC 5772
Galaxy in the constellation Boötes
From Wikipedia, the free encyclopedia
NGC 5772 is a large spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 5,001±9 km/s, which corresponds to a Hubble distance of 240.6 ± 16.9 Mly (73.77 ± 5.17 Mpc).[1] Additionally, five non-redshift measurements give a slightly closer mean distance of 232.35 ± 33.95 Mly (71.240 ± 10.409 Mpc).[2] It was discovered by British astronomer John Herschel on 12 May 1828.[3]
| NGC 5772 | |
|---|---|
NGC 5772 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 51m 38.8908s[1] |
| Declination | +40° 35′ 57.126″[1] |
| Redshift | 0.016245±0.00000667[1] |
| Heliocentric radial velocity | 4,870±2 km/s[1] |
| Distance | 232.35 ± 33.95 Mly (71.240 ± 10.409 Mpc)[1] |
| Apparent magnitude (V) | 13.3g[1] |
| Characteristics | |
| Type | SA(r)b[1] |
| Size | ~155,400 ly (47.66 kpc) (estimated)[1] |
| Apparent size (V) | 1.91′ × 0.94′[1] |
| Other designations | |
| IRAS 14497+4048, 2MASX J14513884+4035572, UGC 9566, MCG +07-31-001, PGC 53067, CGCG 220-060[1] | |
NGC 5772 is a Seyfert galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5] It is also a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[6][5]
Supernovae
Two supernovae have been observed in NGC 5772:
