SN 2014J
SN 2014J was a type-Ia supernova in Messier 82 (the 'Cigar Galaxy', M82) discovered in mid-January 2014. It was the closest type-Ia supernova discovered for 42 years, and no subsequent supernova has been closer as of 2023. The supernova was discovered by chance during an undergraduate teaching session at the University of London Observatory. It peaked on 31 January 2014, reaching an apparent magnitude of 10.5. SN 2014J was the subject of an intense observing campaign by professional astronomers and was bright enough to be seen by amateur astronomers.
First image: Messier 82 on 10 December 2013. Second image: The same view on 22 January 2014. The position of the supernova is marked. | |
| Event type | Supernova |
|---|---|
| SN.Ia | |
| Right ascension | 9h 55m 42.217s |
| Declination | 69° 40′ 26.56″ |
| Epoch | J2000 |
| Distance | 11,500,000 ly (3,500,000 pc) |
| Host | Messier 82 |
| Progenitor | unknown |
| Notable features | Closest Type Ia for 40 years |
| Peak apparent magnitude | 10.1 |
| Other designations | SN 2014J |
| Related media on Commons | |
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