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Galaxy in the constellation Camelopardis From Wikipedia, the free encyclopedia
NGC 1961 (also known as IC 2133) is a spiral galaxy in the constellation Camelopardalis. It was discovered by William Herschel on 3 December 1788. It is at a distance of about 200 million light years from Earth, which, given its apparent dimensions, means that NGC 1961 is more than 220,000 light years across.
| NGC 1961 | |
|---|---|
NGC 1961 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Camelopardalis |
| Right ascension | 05h 42m 04.6s[1] |
| Declination | +69° 22′ 42″[1] |
| Redshift | 3934 ± 1 km/s[1] |
| Distance | 173 Mly (53.4 Mpc)[1] |
| Apparent magnitude (V) | 10.9 |
| Characteristics | |
| Type | SAB(rs)c [1] |
| Apparent size (V) | 4.6′ × 3.0′[1] |
| Other designations | |
| IC 2133, Arp 184, UGC 3334, PGC 17625, 6C B053634.9+692058, 8C 0536+693[1] | |
The galaxy has been distorted, however no companion has been detected nor double nuclei that could show a recent merger. Its outer arms are highly irregular. Two long straight arms extend from the north side of the galaxy.[2] A luminous X-ray corona has been detected around the galaxy.[3][4] NGC 1961 is the central member of the small group of nine galaxies, the NGC 1961 group.[2]
Four supernovae have been observed in NGC 1961: SN 1998eb (type Ia, mag. 17.8),[5] SN 2001is (type Ib, mag. 17.6),[6] SN 2013cc (type II, mag. 17),[7][8] and SN 2021vaz (type II, mag. 17.5).[9]
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