Astronomy:NGC 3314
| NGC 3314 | |
|---|---|
| File:Hubble view of NGC 3314 - Heic1208a.tif NGC 3314a (foreground) and NGC 3314b (background) taken by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 10h 37m 12.5s |
| Declination | −27° 41′ 05″ |
| Redshift | +0.0095 (a) +0.01548 (b) |
| Distance | 117 Mly (a) 140 million ly (b) |
| Apparent magnitude (V) | +12.5 |
| Characteristics | |
| Type | SBbc/SAab |
| Apparent size (V) | 2′.6 × 1′.7 |
| Notable features | galaxy overlapping another |
| Other designations | |
| |
NGC 3314 is a pair of overlapping spiral galaxies between 117 and 140 million light-years away in the constellation Hydra. This unique alignment gives astronomers the opportunity to measure the properties of interstellar dust in the face-on foreground galaxy (NGC 3314a). The dust appears dark against the background galaxy (NGC 3314b). Unlike interacting galaxies, the two components of NGC 3314 are physically unrelated. It[clarification needed] was discovered in April 1999.
In a March 2000 observation of the galaxies, a prominent green star-like object was seen in one of the arms. Astronomers theorized that it could have been a supernova, but the unique filtering properties of the foreground galaxy made it difficult to decide definitively.[1]
Both galaxies are members of the Hydra Cluster.[2]
References
- ↑ Keel, Bill; Frattare, Lisa. "NGC 3314 Variable Object". http://heritage.stsci.edu/2000/14/blink.html.
- ↑ Richter, O.-G. (February 1989). "The Hydra I cluster of galaxies. V - A catalogue of galaxies in the cluster area". Astronomy and Astrophysics Supplement Series 77: 237–256. Bibcode: 1989A&AS...77..237R.
- ↑ Hess, Kelley M.; Kotulla, Ralf; Chen, Hao; Carignan, Claude; Gallagher, John S.; Jarrett, Thomas H.; Kraan-Korteweg, Renée C. (2022-12-01). "NGC 3314a/b and NGC 3312: Ram pressure stripping in Hydra I cluster substructure". Astronomy and Astrophysics 668: A184. doi:10.1051/0004-6361/202243412. ISSN 0004-6361. https://ui.adsabs.harvard.edu/abs/2022A&A...668A.184H.
External links
- "Hubble Spies Galaxy Silhouettes". ScienceDaily. 25 September 2008. https://www.sciencedaily.com/releases/2008/09/080919075530.htm.
- Nemiroff, R.; Bonnell, J., eds (7 May 2005). "NGC 3314: When Galaxies Overlap". Astronomy Picture of the Day. NASA. https://apod.nasa.gov/apod/ap050507.html.
- NGC 3314 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- "NGC 3314". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3314.
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