| 19th century | ||||
|---|---|---|---|---|
| Date | Name | Image | Other/Permanent designation | Discoverer(s) and notes |
| 1800s | ||||
| o: January 1, 1801 p: January 24, 1801 |
Ceres | 8th Planet (1801) Asteroid (1851) Dwarf planet (2006) |
Giuseppe Piazzi. He first announced his discovery on January 24, 1801, in letters to fellow astronomers. The first formal publication was the September 1801 issue of the Monatliche Correspondenz. | |
| 1840s | ||||
| o: September 23, 1846 p: November 13, 1846 |
Neptune | 13th Planet (1846) 8th Planet (1851) |
Galle and Le Verrier | |
| o: October 10, 1846 p: November 13, 1846 |
Triton | Neptune I | Lassell | |
| o: September 16, 1848 p: October 1848 |
Hyperion | Saturn VII | Bond, Bond, Lassell | |
| 1850s | ||||
| o: October 24, 1851 | Ariel | Uranus I | Lassell | |
| Umbriel | Uranus II | |||
| 1870s | ||||
| o: August 12, 1877 | Deimos | Mars II | Hall | |
| o: August 18, 1877 | Phobos | Mars I | ||
| 1890s | ||||
| o: September 9, 1892 p: October 4, 1892 |
Amalthea | Jupiter V | Barnard | |
| i: August 16, 1898 o: March 17, 1899 |
Phoebe | Saturn IX | Pickering | |
| Date | Name | Image | Other/Permanent designation | Discoverer(s) and notes |
Read more about this topic: Timeline Of Discovery Of Solar System Planets And Their Moons
Famous quotes containing the word century:
“Of the best rulers The people only know that they exist; The next best they love and praise The next they fear; And the next they revile. When they do not command the people’s faith, Some will lose faith in them, And then they resort to oaths! But of the best when their task is accomplished, their work done, The people all remark, “We have done it ourselves.””
—Lao-Tzu (6th century B.C.)