NGC 1961
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]
Supernovae
Four supernovae have been observed in NGC 1961:
- SN 1998eb (type Ia, mag. 17.8) was discovered by the Lick Observatory Supernova Search (LOSS) on 17 August 1998.[5][6]
- SN 2001is (type Ib, mag. 17.6) was discovered by BAO and LOTOSS (Lick Observatory and Tenagra Observatory Supernova Searches) on 22 December 2001.[7][8]
- SN 2013cc (type II, mag. 17) was discovered by Kōichi Itagaki on 28 April 2013.[9][10]
- SN 2021vaz (type II, mag. 17.5) was discovered by Kōichi Itagaki on 5 August 2021.[11][12]
Gallery
NGC 1961 by GALEX
NGC 1961 by Mount Lemmon Observatory
NGC 1961 by DSS
NGC 1961 by Hubble Space Telescope
References
External links
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