NGC 1233 (also listed as NGC 1235) is a spiral galaxy in the constellation of Perseus. Its velocity with respect to the cosmic microwave background is 4218 ± 14 km/s, which corresponds to a Hubble distance of 202.9 ± 14.2 Mly (62.22 ± 4.36 Mpc).[1] In addition, three non redshift measurements give a distance of 211.35 ± 2.14 Mly (64.800 ± 0.656 Mpc).[2] The galaxy was discovered by French astronomer Édouard Stephan on 10 December 1871.[3] It is also thought to have been observed by Lewis Swift on 21 October 1886, and later listed as NGC 1235.[4]
| NGC 1233 | |
|---|---|
 Spiral galaxy NGC 1233 | |
| Observation data (J2000 epoch) | |
| Constellation | Perseus |
| Right ascension | 03h 12m 33.11s[1] |
| Declination | +39° 19′ 08.1″[1] |
| Redshift | 0.014640 [1] |
| Heliocentric radial velocity | 4389 ± 7 km/s[1] |
| Distance | 202.9 ± 14.2 Mly (62.22 ± 4.36 Mpc)[1] |
| Group or cluster | NGC 1207 Group (LGG 83) |
| Apparent magnitude (V) | 13.2[1] |
| Characteristics | |
| Type | Sb[1] |
| Size | ~141,400 ly (43.35 kpc) (estimated)[1] |
| Apparent size (V) | 1.8' x 0.6'[1] |
| Other designations | |
| IRAS 03093+3907, 2MASX J03123310+3919081, NGC 1235, UGC 2586, MCG +06-08-003, PGC 11955, CGCG 524-065[1] | |
Supernovae
Three supernovae have been observed in NGC 1233: SN 2009lj (type Ic, mag. 19),[5] SN 2017lf (type Ia, mag. 17.3),[6] and SN 2022bqi (type II, mag. 17).[7]
NGC 1207 Group
NGC 1233 is a part of the 3 member NGC 1207 group (also known as LGG 83). The third galaxy in the group is UGC 2604.[8]
See also
References
External links
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