| name | type | Apparent magnitude | Ascension (°) | date discovered | Declination (°) | Constellation | galaxy | Discovered_by | galactic longitude (°) | galactic latitude (°) | inclination (°) | Redshift | log(diameter) (log(0.1 arcmin)) | Date of maximum light | Position Epoch | Spectral type | confirmed | Average Radial Velocity (km/s) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SN 1997dd | Type II | 16 | 241 | 20/08/1997 | 21 | Hercules (constellation) | PGC 57110 | 36.64763 | 45.63146 | 58 | 1 | SN.IIb | Yes |