UGC 4904
| 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] |
| Heliocentric radial velocity | 1665[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 | |
UGC 4904 is a galaxy located 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
- ^ a b Skrutskie, M. (2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708.
- ^ a b Nordgren, Tyler E.; Chengalur, Jayaram N.; Salpeter, E. E.; Terzian, Yervant (1997). "Close galaxy pairs in low and medium density regions: The southern sky". Astronomical Journal. 114: 913–931. Bibcode:1997AJ....114..913N. doi:10.1086/118523.
- ^ "NED results for object UGC 4904". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. 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. arXiv:1502.03545. Bibcode:2015ApJS..217...27A. doi:10.1088/0067-0049/217/2/27.
- ^ "Massive Star Burps, Then Explodes". Univ. of California, at Berkeley. Retrieved April 4, 2007.
- ^ "NASA – Supernova Imposter Goes Supernova". NASA.Gov. Retrieved April 4, 2007.
External links
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