| Invention or discovery | Date | Inventor or discoverer |
|---|---|---|
| NGC 2797 | March 15, 1866 | Heinrich Louis d'Arrest |
| NGC 2715 | 1871 | Alphonse Borrelly |
| NGC 1843 | January 17, 1877 | Édouard Stephan |
| NGC 3410 | April 1878 | Lawrence Parsons, 4th Earl of Rosse |
| NGC 3321 | 1880 | Francis Preserved Leavenworth |
| NGC 4576 | April 27, 1881 | Edward S. Holden |
| NGC 4611 | May 17, 1881 | Édouard Stephan |
| NGC 1063 | November 16, 1881 | Édouard Stephan |
| NGC 841 | November 24, 1883 | Édouard Stephan |
| NGC 2966 | March 16, 1884 | Édouard Stephan |
| NGC 1100 | October 17, 1885 | Francis Preserved Leavenworth |
| NGC 1148 | November 10, 1885 | Lewis A. Swift |
| NGC 1262 | November 12, 1885 | Francis Preserved Leavenworth |
| NGC 1565 | November 12, 1885 | Francis Preserved Leavenworth |
| NGC 369 | 1886 | Francis Preserved Leavenworth |
| NGC 3702 | 1886 | Francis Preserved Leavenworth |
| NGC 3711-1 | 1886 | Francis Preserved Leavenworth |
| NGC 2947 | May 6, 1886 | Francis Preserved Leavenworth |
| NGC 3026 | May 22, 1886 | Lewis A. Swift |
| NGC 1069 | September 29, 1886 | Lewis A. Swift |
| NGC 1392 | February 13, 1887 | Lewis A. Swift |