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NGC 1961

Coordinates: Sky map 05h 42m 04.6477s, +69° 22′ 42.375″
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(Redirected from IC 2133)
NGC 1961
NGC 1961 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationCamelopardalis[1]
Right ascension05h 42m 04.6477s[2]
Declination+69° 22′ 42.375″[2]
Redshift0.013122[2]
Heliocentric radial velocity3,934±1 km/s[2]
Distance145.42 ± 27.36 Mly (44.586 ± 8.390 Mpc)[2]
Apparent magnitude (V)10.9[1]
Characteristics
TypeSAB(rs)c [2]
Size~240,100 ly (73.62 kpc) (estimated)[2]
Apparent size (V)4.5′ × 3.1′[1]
Other designations
IRAS 05365+6921, IC 2133, Arp 184, UGC 3334, MCG +12-06-007, PGC 17625, CGCG 329-008[2]

NGC 1961 is a spiral galaxy in the constellation Camelopardalis.[1] It was discovered by German-British astronomer William Herschel on 3 December 1788.[3] It was also observed by Guillaume Bigourdan on 22 December 1891, causing it to be listed in the Index Catalogue as IC 2133.[3] Its velocity with respect to the cosmic microwave background for is 3,909±2 km/s, which corresponds to a Hubble distance of 188.0 ± 13.2 Mly (57.65 ± 4.04 Mpc).[2] However, seven non redshift measurements give a much closer distance of 145.42 ± 27.36 Mly (44.586 ± 8.390 Mpc).[4]

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.[5] A luminous X-ray corona has been detected around the galaxy.[6][7] NGC 1961 is the central member of the small group of nine galaxies, the NGC 1961 group.[5]

Supernovae

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Four supernovae have been observed in NGC 1961:

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References

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  1. 1 2 3 4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 184. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
  2. 1 2 3 4 5 6 7 8 9 "Results for object NGC 1961". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 2016-01-18.
  3. 1 2 Seligman, Courtney. "New General Catalogue Objects: NGC 1961". Celestial Atlas. Retrieved 24 April 2025.
  4. ↑ "Distance Results for NGC 1961". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 24 April 2025.
  5. 1 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. S2CID 14282151.
  6. ↑ 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.
  7. ↑ 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.
  8. ↑ Li, W. D.; Modjaz, M.; Halderson, E.; Shefler, T.; King, J. Y.; Papenkova, M.; Treffers, R. R.; Filippenko, A. V. (1998). "Supernova 1998eb in NGC 1961". International Astronomical Union Circular (7016): 1. Bibcode:1998IAUC.7016....1L.
  9. ↑ "SN 1998eb". Transient Name Server. IAU. Retrieved 12 December 2024.
  10. ↑ Qiu, Y. L.; Hu, J. Y.; Papenkova, M.; Schwartz, M. (2001). "Supernova 2001is in NGC 1961". International Astronomical Union Circular (7782): 1. Bibcode:2001IAUC.7782....1Q.
  11. ↑ "SN 2001is". Transient Name Server. IAU. Retrieved 12 December 2024.
  12. ↑ Itagaki, K.; Nakano, S.; Elenin, L.; Molotov, I.; Ochner, P.; Tomasella, L.; Pastorello, A.; Benetti, S.; Cappellaro, E.; Turatto, M. (2013). "Supernova 2013cc in NGC 1961 = PSN J05415876+6921409". Central Bureau Electronic Telegrams (3512): 1. Bibcode:2013CBET.3512....1I.
  13. ↑ "SN 2013cc". Transient Name Server. IAU. Retrieved 12 December 2024.
  14. ↑ Itagaki, Koichi. "Transient Name Server SN 2021vaz Discovery Certificate". Transient Name Server. TNS. Retrieved 7 August 2021.
  15. ↑ "SN 2021vaz". Transient Name Server. IAU. Retrieved 12 December 2024.
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