NGC 1954
| NGC 1954 | |
|---|---|
 Spiral galaxy NGC 1954 | |
| Observation data (J2000 epoch) | |
| Constellation | Lepus |
| Right ascension | 05h 32m 48.3509s[1] |
| Declination | −14° 03′ 45.625″[1] |
| Redshift | 0.010437[1] |
| Heliocentric 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' x 2.0'[1] |
| Other designations | |
| IRAS 05305-1405, 2MASX J05324835-1403460, 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]
Supernovae
[edit]Three supernovae have been observed in NGC 1954:
- SN 2010ko (type Ia, mag. 16.8) was discovered by Simone Leonini on 5 December 2010.[3][4]
- SN 2011fi (type II, mag. 17.8), was discoverd by Kōichi Itagaki on 27 August 2011.[5][6]
- SN 2013ex (type Ia, mag. 15.6) was discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN) on 19 August 2013.[7][8]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 1954". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 24 July 2024.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 1954". Celestial Atlas. Retrieved 13 December 2024.
- ^ Leonini, S.; Brimacombe, J. (2010). "Possible supernova in NGC 1954". Central Bureau Electronic Telegrams. 2569: 1. Bibcode:2010CBET.2569....1L.
- ^ "SN 2010ko". Transient Name Server. IAU. Retrieved 13 December 2024.
- ^ Nakano, S.; Foley, R. J. (2011). "Supernova 2011fi in NGC 1954 = PSN J05325279-1405170". Central Bureau Electronic Telegrams. 2800: 1. Bibcode:2011CBET.2800....1N.
- ^ "SN 2011fi". Transient Name Server. IAU. Retrieved 13 December 2024.
- ^ Brimacombe, J.; Prieto, J. L.; Stanek, K. Z.; Shappee, B. J.; Kochanek, C. S.; Holoien, T. W. -S.; Basu, U.; Beacom, J. F.; Szczygiel, D.; Pojmanski, G.; Dubberley, M.; Elphick, M.; Foale, S.; Hawkins, E.; Mullens, D.; Rosing, W.; Ross, R.; Walker, Z.; Pandya, V.; Jha, S. W.; McCully, C.; Patel, B.; Camacho, Y.; Vaisanen, P. (2013). "Supernova 2013ex in NGC 1954". Central Bureau Electronic Telegrams. 3635: 1. Bibcode:2013CBET.3635....1B.
- ^ "SN 2013ex". Transient Name Server. IAU. Retrieved 13 December 2024.
External links
[edit]
Media related to NGC 1954 at Wikimedia Commons- NGC 1954 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
