
Johann Galle first observes Neptune through a telescope
Neptune was found not by searching the sky at random but by working out where it had to be, from wobbles in Uranus's orbit. Galle, at Berlin Observatory, pointed his telescope at the spot Le Verrier had predicted and found the planet within about a degree of it.
NASA / Voyager 2 / PDS / OPUS / Ardenau4 · CC0






