How was Neptune discovered?
A)By accident,while an astronomer was looking for comets
B)It passed in front of a bright star
C)By looking at a position predicted by calculations
D)This is a trick,it has been known since antiquity

Question

Quizplus · Accepted Answer

Neptune was discovered by looking at a position predicted by calculations. Observations of Uranus showed deviations from its expected position in orbit, which led astronomers to suspect the gravitational pull of another planet. French mathematician Urbain Le Verrier used these observations to calculate the position of the hypothetical planet. German astronomer Johann Galle then used these calculations to locate Neptune in 1846.

How Was Neptune Discovered