| Name | M 2-51 |
| Type | PN [2(3)] |
| Other names | PK103+0.1 / PNG103.2+00.6 |
| RA | 22:16:03.9 |
| Dec | +57:28:34.0 |
| major_axis | 72.0'' |
| mag | 13.5 |
| surface_bright | 13.6 |
| Name | M 2-51 |
| Type | PN [2(3)] |
| Other names | PK103+0.1 / PNG103.2+00.6 |
| RA | 22:16:03.9 |
| Dec | +57:28:34.0 |
| major_axis | 72.0'' |
| mag | 13.5 |
| surface_bright | 13.6 |