| NGC 991 | |
|---|---|
SDSS image of NGC 991
| |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 02h35m 32.68341s[1] |
| Declination | −07° 09′ 15.8406″[1] |
| Redshift | 0.005126[2] |
| Heliocentric radial velocity | 1532.8 km/s[2] |
| Distance | 62.9 ± 4.5 Mly (19.28 ± 1.37 Mpc)[3] |
| Apparent magnitude (B) | 12.36[2] |
| Characteristics | |
| Type | SAB(rs)c[3] |
| Other designations | |
| MCG -01-07-023, PGC 9846[2] | |
NGC 991 is an intermediate spiral galaxy the constellation Cetus. This galaxy was discovered by astronomer William Herschel in 1785.[4][5][6]
Atype Ib supernova designated SN 1984L was discovered in this galaxy in late August 1984 by R. Evans.[7] SN 1984L (type II, mag. 13.5),[8]
Media related to NGC 991 at Wikimedia Commons
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