SN 2213-1745

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SN 2213-1745

Event type	Supernova
SLNS-R
Date	Supernova Legacy Survey
Constellation	Aquarius
Right ascension	22h 13m 39.970s[1]
Declination	−17° 45′ 24.49″[1]
Epoch	J2000.0
Distance	z=2.0458±0.0005
Redshift	2.0458 ±0.0005
Progenitor	~250 M☉ star
[edit on Wikidata]

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.^[1]

• Light curves and spectra Archived 2017-10-23 at the Wayback Machine on the Open Supernova Catalog Archived 2016-03-03 at the Wayback Machine
• 12 Billion-Year Old Supernova Discovered by Astronomers
• Elemental origins glimpsed in 12 billion year old supernova

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