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- Heinrich Louis d'Arrest
Credited to Heinrich Louis d'Arrest
139 inventions and discoveries
| Invention or discovery | Date | Type |
|---|---|---|
| NGC 4165 | April 8, 1864 | intermediate spiral galaxy |
| NGC 4563 | April 13, 1864 | spiral galaxy |
| NGC 3569 | April 27, 1864 | lenticular galaxy |
| NGC 3126 | April 30, 1864 | spiral galaxy |
| NGC 2896 | May 1864 | lenticular galaxy |
| NGC 4090 | May 2, 1864 | spiral galaxy |
| NGC 4093 | May 4, 1864 | elliptical galaxy |
| NGC 3844 | May 8, 1864 | lenticular galaxy |
| NGC 3855 | May 8, 1864 | spiral galaxy |
| NGC 3873 | May 8, 1864 | elliptical galaxy |
| NGC 3816 | May 9, 1864 | lenticular galaxy |
| NGC 4613 | May 9, 1864 | spiral galaxy |
| NGC 4614 | May 9, 1864 | lenticular galaxy |
| NGC 4615 | May 9, 1864 | spiral galaxy |
| NGC 3787 | May 10, 1864 | lenticular galaxy |
| NGC 4170 | May 22, 1864 | star |
| NGC 4171 | May 22, 1864 | star |
| NGC 805 | September 26, 1864 | lenticular galaxy |
| NGC 571 | October 1864 | spiral galaxy |
| NGC 1975 | October 3, 1864 | galaxy |
| NGC 1054 | October 8, 1864 | spiral galaxy |
| NGC 1355 | October 8, 1864 | lenticular galaxy |
| NGC 1449 | October 9, 1864 | lenticular galaxy |
| NGC 1451 | October 9, 1864 | lenticular galaxy |
| NGC 541 | October 30, 1864 | lenticular galaxy |
| NGC 1645 | October 31, 1864 | lenticular galaxy |
| NGC 535 | October 31, 1864 | lenticular galaxy |
| NGC 543 | October 31, 1864 | lenticular galaxy |
| NGC 1104 | November 6, 1864 | lenticular galaxy |
| NGC 2278 | 1865 | galaxy |
| NGC 2468 | 1865 | lenticular galaxy |
| NGC 358 | February 4, 1865 | open cluster |
| NGC 2879 | February 27, 1865 | galaxy |
| NGC 2884 | February 27, 1865 | lenticular galaxy |
| NGC 4483 | March 19, 1865 | lenticular galaxy |
| NGC 4207 | March 23, 1865 | spiral galaxy |
| NGC 4320 | April 15, 1865 | spiral galaxy |
| NGC 4306 | April 16, 1865 | lenticular galaxy |
| NGC 4523 | April 19, 1865 | spiral galaxy |
| NGC 2277 | April 20, 1865 | galaxy |
| NGC 2284 | April 20, 1865 | galaxy |
| NGC 2285 | April 20, 1865 | galaxy |
| NGC 4408 | April 21, 1865 | lenticular galaxy |
| NGC 4426 | April 21, 1865 | multiple star |
| NGC 4585 | April 21, 1865 | spiral galaxy |
| NGC 4445 | April 24, 1865 | spiral galaxy |
| NGC 4084 | April 26, 1865 | elliptical galaxy |
| NGC 3943 | April 27, 1865 | spiral galaxy |
| NGC 3820 | April 29, 1865 | spiral galaxy |
| NGC 528 | August 22, 1865 | lenticular galaxy |
| NGC 789 | August 24, 1865 | spiral galaxy |
| NGC 688 | September 16, 1865 | barred spiral galaxy |
| NGC 753 | September 16, 1865 | spiral galaxy |
| NGC 843 | September 16, 1865 | asterism |
| NGC 861 | September 18, 1865 | spiral galaxy |
| NGC 656 | September 20, 1865 | lenticular galaxy |
| NGC 590 | September 22, 1865 | spiral galaxy |
| NGC 829 | September 23, 1865 | radio galaxy |
| NGC 830 | September 23, 1865 | lenticular galaxy |
| NGC 786 | September 26, 1865 | spiral galaxy |