Spectral class SLNS-R or SLNS-II ? Declination +02° 16' 23.62 Distance z=3.8993 ± 0.0074 | Right ascension 10 00 05.87 Epoch J2000.0 | |
Date Supernova Legacy Survey | ||
SN 1000+0216 was an extremely remote superluminous supernova (SLSN), which occurred in between June and November 2006. Its peak far-ultraviolet absolute magnitude reached −21.5, which exceeded the total absolute magnitude of its host galaxy. The distance (redshift) to this supernova z=3.8993 ± 0.0074 makes it the most distant supernova observed as of 2012. The luminosity of SN 1000+0216 evolved slowly over several years as it was still detectable in November 2008. Both the high luminosity and slow decay indicate that the supernova's progenitor was a very massive star. The supernova explosion itself was likely either a pair-instability supernova or a pulsational pair-instability supernova similar to the SN 2007bi or event. It also had some similarities to the low redshift SN 2006gy supernova. Overall classification of SN 1000+0216 remains uncertain.