In 1846, Johann Galle found Neptune:
A)a few degrees from where it was predicted to be.
B)after many years of searching for it.
C)exactly where he predicted it would be.
D)using just a pair of binoculars.
E)using grossly inaccurate star charts.

Question

Quizplus · Accepted Answer

Johann Galle found Neptune a few degrees from where it was predicted to be, based on the calculations of mathematician Urbain Le Verrier. Galle used a telescope to observe Neptune and confirm its position. Johann Galle found Neptune a few degrees from where it was predicted to be. This was because of errors in the calculations made by John Couch Adams and Urbain Le Verrier, who independently predicted Neptune's position using mathematical equations.

In 1846, Johann Galle Found Neptune