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- 19th century
The 19th century
1,725 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| NGC 3973 | March 15, 1855 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| NGC 607 | August 23, 1855 | Heinrich Louis d'Arrest | double star |
| NGC 1988 | October 19, 1855 | France | star |
| Livingstone Island | November 16, 1855 | David Livingstone | island |
| NGC 1130 | December 8, 1855 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 1131 | December 8, 1855 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 2475 | January 9, 1856 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 2857 | January 9, 1856 | R. J. Mitchell | low-surface-brightness galaxy |
| NGC 2480 | February 1856 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| NGC 3803 | March 27, 1856 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| 42 Isis | May 23, 1856 | N. R. Pogson | asteroid |
| NGC 501 | October 28, 1856 | William Parsons, 3rd Earl of Rosse | elliptical galaxy |
| NGC 894 | November 28, 1856 | William Parsons, 3rd Earl of Rosse | H II region |
| NGC 2175 | 1857 | Karl Christian Bruhns | open cluster |
| NGC 2247 | February 14, 1857 | William Parsons, 3rd Earl of Rosse | astronomical radio source |
| NGC 2490 | February 14, 1857 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 2873 | February 22, 1857 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| 43 Ariadne | April 15, 1857 | N. R. Pogson | asteroid |
| NGC 4118 | April 20, 1857 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| 44 Nysa | May 27, 1857 | Hermann Goldschmidt | asteroid |
| 46 Hestia | August 16, 1857 | N. R. Pogson | asteroid |
| NGC 169 | September 18, 1857 | William Parsons, 3rd Earl of Rosse | Seyfert galaxy |
| NGC 207 | December 7, 1857 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| 51 Nemausa | January 22, 1858 | Joseph Jean Pierre Laurent | asteroid |
| NGC 2605 | March 11, 1858 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| NGC 2688 | March 11, 1858 | William Parsons, 3rd Earl of Rosse | lenticular galaxy |
| 55 Pandora | September 10, 1858 | George Mary Searle | asteroid |
| Caesium | 1860 | Gustav Kirchhoff | lithophile element |
| Raschet Blast Furnace | 1860 | Vladimir Rashet | oven |
| NGC 1251 | January 25, 1860 | United States | double star |
| NGC 1699 | February 13, 1860 | William Parsons, 3rd Earl of Rosse | spiral galaxy |
| Archaeopteryx | 1861 | Carl Friedrich Häberlein | fossil taxon |
| 66 Maja | April 9, 1861 | Horace Parnell Tuttle | asteroid |
| 67 Asia | April 17, 1861 | N. R. Pogson | asteroid |
| C/1861 J1 | May 13, 1861 | John Tebbutt | non-periodic comet |
| NGC 588 | October 2, 1861 | Heinrich Louis d'Arrest | H II region |
| NGC 592 | October 2, 1861 | Heinrich Louis d'Arrest | H II region |
| NGC 4205 | October 4, 1861 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 374 | October 7, 1861 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 719 | November 24, 1861 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 2675 | December 2, 1861 | Heinrich Louis d'Arrest | elliptical galaxy |
| NGC 791 | December 3, 1861 | Heinrich Louis d'Arrest | elliptical galaxy |
| NGC 3929 | December 4, 1861 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 1642 | December 29, 1861 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 3827 | December 29, 1861 | Heinrich Louis d'Arrest | radio galaxy |
| NGC 1586 | December 30, 1861 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 1720 | December 30, 1861 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 1752 | December 30, 1861 | Heinrich Louis d'Arrest | spiral galaxy |
| Juglar cycle | 1862 | Clément Juglar | business cycle |
| NGC 3221 | 1862 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 3287 | 1862 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 2699 | January 4, 1862 | Heinrich Louis d'Arrest | elliptical galaxy |
| NGC 2569 | February 19, 1862 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 3251 | February 19, 1862 | Heinrich Louis d'Arrest | spiral galaxy |
| NGC 4269 | March 4, 1862 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 4324 | March 4, 1862 | Heinrich Louis d'Arrest | lenticular galaxy |
| NGC 2749 | March 5, 1862 | Heinrich Louis d'Arrest | elliptical galaxy |
| 73 Klytia | April 7, 1862 | Horace Parnell Tuttle | asteroid |
| NGC 3806 | April 21, 1862 | Heinrich Louis d'Arrest | low-surface-brightness galaxy |
| NGC 4257 | April 21, 1862 | Heinrich Louis d'Arrest | spiral galaxy |