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- 19th century
The 19th century
1,725 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| NGC 1104 | November 6, 1864 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 2405 | November 7, 1864 | Albert Marth | galaxy |
| NGC 2486 | November 7, 1864 | Albert Marth | spiral galaxy |
| NGC 2487 | November 7, 1864 | Albert Marth | spiral galaxy |
| NGC 2341 | November 10, 1864 | Albert Marth | spiral galaxy |
| NGC 2962 | December 10, 1864 | Albert Marth | lenticular galaxy |
| NGC 518 | December 17, 1864 | Albert Marth | spiral galaxy |
| NGC 1026 | December 24, 1864 | Albert Marth | lenticular galaxy |
| NGC 116 | 1865 | Gaspare Stanislao Ferrari | lenticular galaxy |
| NGC 1381 | 1865 | Johann Friedrich Julius Schmidt | lenticular galaxy |
| NGC 1382 | 1865 | Johann Friedrich Julius Schmidt | lenticular galaxy |
| NGC 2278 | 1865 | Heinrich Louis d'Arrest | galaxy |
| NGC 2468 | 1865 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 1007 | January 15, 1865 | Albert Marth | lenticular galaxy |
| NGC 1021 | January 15, 1865 | Albert Marth | intermediate spiral galaxy |
| NGC 1396 | January 19, 1865 | Johann Friedrich Julius Schmidt | lenticular galaxy |
| NGC 3039 | January 22, 1865 | Albert Marth | spiral galaxy |
| NGC 3083 | January 22, 1865 | Albert Marth | spiral galaxy |
| NGC 3086 | January 22, 1865 | Albert Marth | spiral galaxy |
| NGC 3101 | January 22, 1865 | Albert Marth | spiral galaxy |
| NGC 2416 | January 26, 1865 | Albert Marth | spiral galaxy |
| NGC 2522 | January 26, 1865 | Albert Marth | lenticular galaxy |
| NGC 2596 | January 26, 1865 | Albert Marth | radio galaxy |
| NGC 358 | February 4, 1865 | Heinrich Louis d'Arrest | open cluster |
| NGC 2503 | February 17, 1865 | Albert Marth | spiral galaxy |
| NGC 2553 | February 17, 1865 | Albert Marth | spiral galaxy |
| NGC 2556 | February 17, 1865 | Albert Marth | lenticular galaxy |
| NGC 2790 | February 17, 1865 | Albert Marth | radio galaxy |
| NGC 2801 | February 17, 1865 | Albert Marth | spiral galaxy |
| NGC 2812 | February 17, 1865 | Albert Marth | lenticular galaxy |
| NGC 2813 | February 17, 1865 | Albert Marth | lenticular galaxy |
| NGC 2879 | February 27, 1865 | Heinrich Louis d'Arrest | galaxy |
| NGC 2884 | February 27, 1865 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 787 | February 27, 1865 | Christian Heinrich Friedrich Peters | spiral galaxy |
| NGC 3592 | March 4, 1865 | Albert Marth | spiral galaxy |
| NGC 3598 | March 4, 1865 | Albert Marth | lenticular galaxy |
| NGC 3602 | March 4, 1865 | Albert Marth | spiral galaxy |
| NGC 4056 | March 18, 1865 | Albert Marth | elliptical galaxy |
| NGC 4060 | March 18, 1865 | Albert Marth | lenticular galaxy |
| NGC 4483 | March 19, 1865 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 3326 | March 22, 1865 | Albert Marth | radio galaxy |
| NGC 3337 | March 22, 1865 | Albert Marth | lenticular galaxy |
| NGC 3362 | March 22, 1865 | Albert Marth | astronomical radio source |
| NGC 3601 | March 22, 1865 | Albert Marth | intermediate spiral galaxy |
| NGC 3641 | March 22, 1865 | Albert Marth | elliptical galaxy |
| NGC 3644 | March 22, 1865 | Albert Marth | spiral galaxy |
| NGC 3647 | March 22, 1865 | Albert Marth | elliptical galaxy |
| NGC 4538 | March 22, 1865 | Albert Marth | spiral galaxy |
| NGC 4207 | March 23, 1865 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 3417 | March 25, 1865 | Albert Marth | spiral galaxy |
| NGC 3438 | March 25, 1865 | Albert Marth | radio galaxy |
| NGC 3439 | March 25, 1865 | Albert Marth | spiral galaxy |
| NGC 3526 | March 25, 1865 | Albert Marth | spiral galaxy |
| NGC 4029 | March 25, 1865 | Albert Marth | spiral galaxy |
| NGC 4082 | March 25, 1865 | Albert Marth | lenticular galaxy |
| NGC 4083 | March 25, 1865 | Albert Marth | lenticular galaxy |
| NGC 2576 | March 29, 1865 | Albert Marth | spiral galaxy |
| NGC 2594 | March 29, 1865 | Albert Marth | lenticular galaxy |
| NGC 2611 | March 29, 1865 | Albert Marth | radio galaxy |
| NGC 2747 | March 29, 1865 | Albert Marth | spiral galaxy |