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 jan 1812 ano – 5 jun 1819 ano)
Adicionado na linha do tempo:
Data:
1 jan 1812 ano
5 jun 1819 ano
~ 7 years and 5 months