| Invention or discovery | Inventor or discoverer | Type |
|---|---|---|
| Brewster stereoscope | David Brewster | optical instrument |
| NGC 1601 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 1603 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 1606 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 1709 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 2373 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| NGC 2288 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 2321 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| NGC 1323 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 2673 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |