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NGC 908 is an unbarred spiral galaxy in the constellation Cetus. It was discovered in 1786 by William Herschel. This galaxy is 56 million light years away from Earth. It is the main galaxy in the NGC 908 group, which also includes NGC 899, NGC 907, and IC 223.[3]
| NGC 908 | |
|---|---|
 NGC 908 by the Very Large Telescope of ESO. | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 02h 23m 04.6s[1] |
| Declination | −21° 14′ 02″[1] |
| Redshift | 1509 ± 5 km/s[1] |
| Distance | 56.0 ± 5.7 Mly (17.2 ± 1.8 Mpc)[1] |
| Group or cluster | NGC 908 group |
| Apparent magnitude (V) | 10.83[2] |
| Characteristics | |
| Type | SA(s)c [1] |
| Apparent size (V) | 6′.0 × 2′.6[1] |
| Other designations | |
| UGCA 27, MCG -04-06-035, PGC 9057[2] | |
NGC 908 has vigorous star formation and is a starburst galaxy. The galaxy has a three-arm spiral pattern; two of its arms have peculiar morphology. The galaxy has a bright central bulge. Clusters of young stars and star-forming knots can be seen in the arms. Starburst activity and the peculiar morphology of the galaxy indicate it had a close encounter with another galaxy, although none are visible now.[4]
Two supernovae have been observed in NGC 908, SN 1994ai (Ic type, mag. 17) and SN 2006ce (Ia type, mag. 12.4).[5]
References
- "Results for NGC 908". NASA/IPAC Extragalactic Database. Retrieved 2006-11-18.
- "Your NED Search Results". NASA/IPAC Extragalactic Database. Retrieved 2020-11-09.
- Dmitry Makarov and Igor Karachentsev (2011). "Galaxy groups and clouds in the local (z∼ 0.01) Universe". MNRAS. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025. Retrieved 1 January 2016.
- "The Starburst Galaxy NGC 908". ESO. 26 July 2006. Retrieved 9 November 2020.
- "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
External links
Media related to NGC 908 at Wikimedia Commons- NGC 908 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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На других языках
[de] NGC 908
NGC 908 ist eine Spiralgalaxie vom Hubble-Typ SA(s)c im Sternbild Walfisch südlich des Himmelsäquators. Sie hat eine scheinbare Helligkeit von 10,2 mag und eine Winkelausdehnung von 6′,1 × 2′,7. Bei einer Entfernung von geschätzten 66 Mio. Lichtjahren ergibt sich ein Durchmesser von 115.000 Lj. Die Kernregion ist absolut gleichmäßig, ohne Bulge, sie zählt somit zu den sogenannten Scheibengalaxien. NGC 908 steht vermutlich in Wechselwirkung mit der kompakten Galaxie PGC 9005.- [en] NGC 908
[ru] NGC 908
NGC 908 (другие обозначения — ESO 545-11, MCG -4-6-35, UGCA 29, IRAS02207-2127, PGC 9057) — спиральная галактика с перемычкой (SBc) в созвездии Кит.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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