 M100 before and after the supernova explosion | |
| Event type | Supernova  |
|---|---|
| Ia | |
| Date | February 4, 2006 |
| Constellation | Coma Berenices |
| Right ascension | 12h 22m 53.92s |
| Declination | +15° 48′ 31.2″ |
| Epoch | B1950.0 |
| Distance | 65 mly[1] |
| Redshift | 0.0036, 0.007, 0.0067, 0.0071, 0.0068, 0.0037, 0.0043 |
| Host | M100 |
| Peakapparent magnitude | +13[2] |
| Other designations | SN 2006X |
 Related media on Commons | |
SN 2006X was aType Iasupernova about65 millionlight-years away[1] inMessier 100, aspiral galaxy in theconstellationComa Berenices. The supernova was independently discovered in early February 2006 byShoji Suzuki ofJapan andMarco Migliardi ofItaly.
SN 2006X is particularly significant because it is a Type Ia supernova. These supernovae are used for measuring distances, so observations of these supernovae in nearby galaxies are needed for calibration. SN 2006X is located in a well-studied galaxy, and it was discovered two weeks before its peak brightness, so it may be extraordinarily useful for understanding supernovae and for calibrating supernovae for distance measurements. It may even be possible to identify the progenitor of this supernova.[citation needed]
 | This variable star–related article is astub. You can help Wikipedia byexpanding it. |
