| Invention or discovery | Inventor or discoverer | Type |
|---|---|---|
| NGC 2475 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 2857 | R. J. Mitchell | low-surface-brightness galaxy |
| NGC 2480 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| NGC 3803 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| 42 Isis | N. R. Pogson | asteroid |
| NGC 501 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 894 | William Parsons, 3rd Earl of Rosse | H II region |