| 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 1997Y | Type I | 15 | 191 | 02/02/1997 | 55 | Ursa Major | PGC 42998 | 124.77268 | 62.36905 | 72 | 1 | SNIa | Yes | 4,935,000 |