SN 393
 The Wěi asterism appears in the lower half of the Scorpius constellation | |
| Event type | Supernova  |
|---|---|
| Type II/Ib | |
| Date | 27 February− 28 March 393 22 October− 19 November 393 CE |
| Constellation | Scorpius |
| Right ascension | 17h 14m |
| Declination | −39.8° |
| Epoch | J2000 |
| Galactic coordinates | G347.4−00.6° |
| Distance | 1 kpc (3×103 ly) |
| Remnant | Shell |
| Host | Milky Way |
| Peak apparent magnitude | −1 |
| Other designations | SN 393 |
| Preceded by | SN 386 |
| Followed by | SN 1006 |
Preview warning: Page using Template:Infobox astronomical event with unknown parameter "image_size"
SN 393 is the modern designation for a probable supernova that was reported by the Chinese in the year 393 CE.