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 [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]
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 [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]