Astronomy:UGC 4904
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Short description: Galaxy in the constellation Lynx
| UGC 4904 | |
|---|---|
 UGC 4904, imaged by the Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Lynx |
| Right ascension | 09h 17m 21.709s[1] |
| Declination | +41° 54′ 38.92″[1] |
| Redshift | 0.005571[2] |
| Apparent magnitude (B) | 15.0[3] |
| Characteristics | |
| Type | SABdm[4] |
| Notable features | Dwarf spiral galaxy with a supernova impostor |
| Other designations | |
| UGC 4904, MCG+07-19-054, PGC 26231[3] | |
UGC 4904 is a barred spiral galaxy in the constellation Lynx, located about 77 million light-years from Earth. On October 20, 2004, a supernova impostor was observed by Japanese amateur astronomer Koichi Itagaki within the galaxy. This same star may have transitioned from a LBV star to a Wolf–Rayet star[5] shortly before it was observed as blowing up as hypernova SN 2006jc on October 11, 2006.[6]
References
- ↑ 1.0 1.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedNordgren - ↑ 3.0 3.1 "NED results for object UGC 4904". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=UGC+4904&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. Retrieved 29 January 2017.
- ↑ Ann, H. B.; Seo, Mira; Ha, D. K. (2015). "A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe". The Astrophysical Journal Supplement Series 217 (2): 27–49. doi:10.1088/0067-0049/217/2/27. Bibcode: 2015ApJS..217...27A.
- ↑ "Massive Star Burps, Then Explodes". Univ. of California, at Berkeley. http://chandra.harvard.edu/press/07_releases/press_040407.html. Retrieved April 4, 2007.
- ↑ "NASA – Supernova Imposter Goes Supernova". NASA.Gov. http://www.nasa.gov/centers/goddard/news/topstory/2007/supernova_imposter.html. Retrieved April 4, 2007.
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