NGC 1961

NGC 1961 (also known as IC 2133) is a spiral galaxy in constellation Camelopardalis. It is at a distance of circa 200 million light years from Earth, which, given its apparent dimensions, means that NGC 1961 is more than 220,000 light years across. 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 extent 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]

NGC 1961
Observation data (J2000 epoch)
ConstellationCamelopardalis
Right ascension 05h 42m 04.6s[1]
Declination+69° 22′ 42″[1]
Redshift3934 ± 1 km/s[1]
Distance173 Mly (53.4 Mpc)[1]
Apparent magnitude (V)10.9
Characteristics
TypeSAB(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]

It was discovered by William Herschel on December 3, 1788. Three supernovae have been observed in NGC 1961, SN 1998eb, SN 2001is, and SN 2013cc.[5]

  • NGC 1961 by GALEX
  • NGC 1961 by Mount Lemmon Observatory

References
  1. "NASA/IPAC Extragalactic Database". Results for NGC 1961. Retrieved 2016-01-18.
  2. 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.
  3. 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.
  4. 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.
  5. List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.


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