Johann Gottfried Galle 1812 1.) He was the first person with his student to view the planet neptune. 2.) He discovered 3 new comets. 3.) He came up with a new method to measure the solar parallax (1 janv. 1812 – 5 juin 1819)
Ajouté au bande de temps:
Date:
1 janv. 1812
5 juin 1819
~ 7 years and 5 months