SN 2213-1745
| Event type |
Supernova 
|
|---|---|
| Spectral class | SLNS-R |
| Date | Supernova Legacy Survey |
| Constellation |
Aquarius
|
| Right ascension | 22h 13m 39.97s |
| Declination | −17° 45' 24.49 |
| Epoch | J2000.0 |
| Distance | z=2.0458 ± 0.0005 |
| Progenitor | ~ 250 M☉ star |
|
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SN 2213-1745 was an extremely remote superluminous supernova (SLSN), which occurred in between November 2004 and June 2005. Its peak far-ultraviolet absolute magnitude reached −21.2, which was comparable to the total absolute magnitude of its host galaxy. The distance (redshift) to this supernova z=2.0458 ± 0.0005 makes it one of the most remote supernova observed as of 2012. The luminosity of SN 2213-1745 evolved slowly over several years as it was still detectable in November 2006. Both the high luminosity and slow decay indicate that the supernova's progenitor was a star with an initial mass as high as 250 solar masses. The supernova explosion itself was likely a pair-instability supernova similar to the SN 2007bi event, with which it shares many similarities.
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