Other designations SN 1990U Spectral class SN Ic | Date July 27, 1990 Right ascension 23 04 54.96 | |
SN 1990U was a type Ic supernova event in the nucleus of the galaxy NGC 7479. It was discovered July 27, 1990 by the Berkeley Automated Supernova Search after reaching magnitude 7001160000000000000♠16±0.5. Initially this was classified as a Type Ib supernova, but the weakness of the neutral helium absorption lines led to a reclassification.
References
SN 1990U Wikipedia(Text) CC BY-SA