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| Event type | Supernova  |
|---|---|
| II | |
| Date | January 5, 2003 |
| Constellation | Fornax |
| Right ascension | 02h 46.3m |
| Declination | -30° 17' |
| Epoch | B1950.0 |
| Galactic coordinates | 226.8077 -64.6995 |
| Distance | 45 Mly |
| Remnant | ? |
| Host | NGC 1097 |
| Notable features | first supernova in NGC 1097 for 21st century |
| Peak apparent magnitude | +15 |
| Other designations | SN 2003B |
SN 2003B was a type II supernova that happened in NGC 1097 on January 5, 2003.