Galileo did record its position but, because Neptune was just entering its retrograde phase, he did not see its orbital motion an so thought it was a star.
It was properly identified by Johann Gottfried Galle in 1846.
Neptune was discovered on September 23, 1846 by Johan Galle.
september 23,1846 by johan galle
september 23,1846 by johan galle
he used a telescope to discover Neptune
Neptune was discovered by Urbain Le Verrier, John Couch Adams, and Johann Galle
No, the Sun, moon and inner planets were discovered well before Neptune.
omg y wont it give me the answer
neptune
Neptune
In Neptune
1989
A telescope.