Question

who discovered Neptune and when​

Answer 1

Answer:

Johann Gottfried Galle

Urbain Le Verrier

John Couch Adams

Explanation:

The planet Neptune was mathematically predicted before it was directly observed. With a prediction by Urbain Le Verrier, telescopic observations confirming the existence of a major planet were made on the night of September 23–24, 1846,[1] at the Berlin Observatory, by astronomer Johann Gottfried Galle (assisted by Heinrich Louis d'Arrest), working from Le Verrier's calculations. It was a sensational moment of 19th-century science, and dramatic confirmation of Newtonian gravitational theory. In François Arago's apt phrase, Le Verrier had discovered a planet "with the point of his pen".

Answer 2

Answer:

Johann Gollried Galle discovered nepture first on 23 September 1846