| Jméno | NGC 5477 |
| Typ | GX [Sm] |
| Další názvy | PGC50262 / UGC9018 |
| Souhvězdí | Ursa major |
| popis | May be associated with MESSIER 101. Multiple SDSS entries describe this object. |
| RA | 14:05:33.0 |
| Dec | +54:27:39.0 |
| major_axis | 96.0'' |
| minor_axis | 78.0'' |
| position_angle | 95.0 |
| mag | 14.0 |
| surface_bright | 14.5 |