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]
Gallery
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NGC 1961 by GALEX -
NGC 1961 by Mount Lemmon Observatory -
NGC 1961 by DSS -
NGC 1961 by Hubble Space Telescope
References
edit- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 1961. Retrieved 2016-01-18.
- ^ a b Epinat, B.; Amram, P.; Marcelin, M.; Balkowski, C.; Daigle, O.; Hernandez, O.; Chemin, L.; Carignan, C.; Gach, J.-L.; Balard, P. (1 August 2008). "GHASP: an Hα kinematic survey of spiral and irregular galaxies – VI. New Hα data cubes for 108 galaxies". Monthly Notices of the Royal Astronomical Society. 388 (2): 500–550. arXiv:0805.0976. Bibcode:2008MNRAS.388..500E. doi:10.1111/j.1365-2966.2008.13422.x. S2CID 14282151.
- ^ Michael E. Anderson and Joel N. Bregman (August 2011). "Detection of a Hot Gaseous Halo around the Giant Spiral Galaxy NGC 1961". The Astrophysical Journal. 737 (1): 10. arXiv:1105.4614. Bibcode:2011ApJ...737...22A. doi:10.1088/0004-637X/737/1/22. S2CID 59270186.
- ^ Bogdán, Ákos; Forman, William R.; Vogelsberger, Mark; Bourdin, Hervé; Sijacki, Debora; Mazzotta, Pasquale; Kraft, Ralph P.; Jones, Christine; Gilfanov, Marat; Churazov, Eugene; David, Laurence P. (1 August 2013). "Hot X-Ray Coronae around Massive Spiral Galaxies: A Unique Probe of Structure Formation Models". The Astrophysical Journal. 772 (2): 97. arXiv:1212.0541. Bibcode:2013ApJ...772...97B. doi:10.1088/0004-637X/772/2/97. S2CID 5987732.
- ^ Transient Name Server entry for SN 1998eb. Retrieved 25 March 2023.
- ^ Transient Name Server entry for SN 2001is. Retrieved 25 March 2023.
- ^ Transient Name Server entry for SN 2013cc. Retrieved 25 March 2023.
- ^ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
- ^ Itagaki, Koichi. "Transient Name Server SN 2021vaz Discovery Certificate". Transient Name Server. TNS. Retrieved 7 August 2021.
External links
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- NGC 1961 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images