| Invention or discovery | Date | Inventor or discoverer |
|---|---|---|
| NGC 4004 | April 11, 1785 | William Herschel |
| NGC 1094 | November 7, 1785 | William Herschel |
| NGC 3207 | February 3, 1788 | William Herschel |
| NGC 2389 | February 5, 1788 | William Herschel |
| NGC 633 | September 1834 | John Frederick William Herschel |
| NGC 639 | September 27, 1834 | John Frederick William Herschel |
| NGC 3275 | February 1835 | John Frederick William Herschel |
| NGC 2247 | February 14, 1857 | William Parsons, 3rd Earl of Rosse |
| NGC 329 | September 27, 1864 | Albert Marth |
| NGC 3362 | March 22, 1865 | Albert Marth |
| NGC 4135 | May 4, 1881 | Édouard Stephan |
| NGC 2860 | March 17, 1884 | Édouard Stephan |
| NGC 2922 | March 18, 1884 | Édouard Stephan |
| NGC 1133 | 1886 | Francis Preserved Leavenworth |
| NGC 3146 | 1886 | Ormond Stone |
| NGC 3290 | 1886 | Francis Preserved Leavenworth |
| NGC 617 | 1886 | Francis Preserved Leavenworth |
| NGC 689 | 1886 | Ormond Stone |
| NGC 985 | 1886 | Francis Preserved Leavenworth |
| NGC 1797 | February 13, 1887 | Lewis A. Swift |