Astronomy:NGC 1954
From HandWiki
| NGC 1954 | |
|---|---|
 NGC 1954 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Lepus |
| Right ascension | 05h 32m 48.3509s[1] |
| Declination | −14° 03′ 45.625″[1] |
| Redshift | 0.010437[1] |
| Helio radial velocity | 3129 ± 2 km/s[1] |
| Distance | 152.6 ± 10.7 Mly (46.79 ± 3.28 Mpc)[1] |
| Apparent magnitude (V) | 11.8[1] |
| Characteristics | |
| Type | SA(rs)bc pec?[1] |
| Size | ~192,000 ly (58.87 kpc) (estimated)[1] |
| Apparent size (V) | 4.2′ × 2.0′[1] |
| Other designations | |
| IRAS 05305-1405, MCG-02-15-003, PGC 17422[1] | |
NGC 1954 is a large spiral galaxy in the constellation of Lepus. Its velocity with respect to the cosmic microwave background is 3,172 ± 4 km/s, which corresponds to a Hubble distance of 46.8 ± 3.3 Mpc Mpc (~153 million light-years).[1] It was discovered by German-British astronomer William Herschel on 14 December 1786.[2]
The galaxy features two thin arcs which contain HII regions.[3] The galaxy forms a pair with NGC 1957, which lies 5.1 arcminutes away.[4] Other nearby galaxies include IC 2132, MCG -02-14-016, and MCG -03-15-006.[5]
Supernovae
Three supernovae have been observed in NGC 1954:
- SN 2010ko (Type Ia, mag. 16.8) was discovered by Simone Leonini on 5 December 2010.[6][7]
- SN 2011fi (Type II, mag. 17.8), was discovered by Kōichi Itagaki on 27 August 2011.[8][9]
- SN 2013ex (Type Ia, mag. 15.6) was discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN) on 19 August 2013.[10][11]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 1954". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+1954.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 1954". https://cseligman.com/text/atlas/ngc19a.htm#1954.
- ↑ Vorontsov-Vel'Yaminov, B. A.; Arkhipova, V. P. (1 January 1968). "Morphological catalogue of galaxies. Part IV. Catalogue of 5410 galaxies between declinations -9 and -33.". Trudy Gosudarstvennogo Astronomicheskogo Instituta 38: 1–206. ISSN 0371-6791. Bibcode: 1968TrSht..38....1V. https://ui.adsabs.harvard.edu/abs/1968TrSht..38....1V/abstract.
- ↑ de Vaucouleurs, G.; de Vaucouleurs, A.; Corwin, J. R. (1 January 1976). "Second reference catalogue of bright galaxies". Second Reference Catalogue of Bright Galaxies 1976: 0. Bibcode: 1976RC2...C......0D. https://ui.adsabs.harvard.edu/abs/1976RC2...C......0D/abstract.
- ↑ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society 412 (4): 2498–2520. doi:10.1111/j.1365-2966.2010.18071.x. Bibcode: 2011MNRAS.412.2498M. http://www.sao.ru/hq/dim/groups/galaxies.dat.
- ↑ Leonini, S.; Brimacombe, J. (2010). "Possible supernova in NGC 1954". Central Bureau Electronic Telegrams (2569): 1. Bibcode: 2010CBET.2569....1L. http://www.cbat.eps.harvard.edu/iau/cbet/002500/CBET002569.txt.
- ↑ "SN 2010ko". IAU. https://www.wis-tns.org/object/2010ko.
- ↑ Nakano, S.; Foley, R. J. (2011). "Supernova 2011fi in NGC 1954 = PSN J05325279-1405170". Central Bureau Electronic Telegrams (2800): 1. Bibcode: 2011CBET.2800....1N. http://www.cbat.eps.harvard.edu/iau/cbet/002800/CBET002800.txt.
- ↑ "SN 2011fi". IAU. https://www.wis-tns.org/object/2011fi.
- ↑ Brimacombe, J.; Prieto, J. L.; Stanek, K. Z.; Shappee, B. J.; Kochanek, C. S.; Holoien, T. W. -S.; Basu, U.; Beacom, J. F. et al. (2013). "Supernova 2013ex in NGC 1954". Central Bureau Electronic Telegrams (3635): 1. Bibcode: 2013CBET.3635....1B.
- ↑ "SN 2013ex". IAU. https://www.wis-tns.org/object/2013ex.
External links
- NGC 1954 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
 |  |
