| 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 1957A | Type I | 15 | 140 | 26/02/1957 | 51 | Ursa Major | PGC 26512 | 166.92081 | 44.11780 | 65 | 2 | 02/03/1957 | SN.IaPec | Yes | ||||
| SN 1999by | Type I | 14 | 140 | 30/04/1999 | 51 | Ursa Major | PGC 26512 | 166.91435 | 44.11952 | 65 | 2 | 12/05/1999 | SN.Ia-91bg | Yes | 808,000 | |||
| SN 1972R | Type I | 13 | 141 | 05/12/1972 | 51 | Ursa Major | PGC 26512 | 166.94188 | 44.14954 | 65 | 2 | SN.Ib: | Yes | |||||
| SN 1912A | 13 | 141 | 19/02/1912 | 51 | Ursa Major | PGC 26512 | 166.94188 | 44.14954 | 65 | 2 | Yes |