How was Neptune discovered?

Neptune was first discovered in February1612+12+28, when Galileo was describing it. But at first, he didn't give this constellation a name, just called it a star.

1, Galileo first observed and described Neptune in 16 12 and 12 in February 28, and in1613,65438+27/kloc-0.

I believe it is a star, but I don't believe my own discovery, because it was first observed at 16 12 12. Neptune stayed in the position of regression, because the movement at the beginning of regression was so small that Galileo's small telescope could not detect the change of position.

3. 1846, Levi, an astronomy teacher at the French University of Technology, independently calculated Neptune's position with his enthusiasm without the support of his colleagues.

After a period of discussion, we finally decided to name it Neptune.

Introduction to Neptune:

1, Neptune is the farthest planet from the sun among the eight planets in the solar system, with the fourth largest volume but the third largest mass. Neptune is smaller in diameter and volume than Uranus, but its mass is larger than Uranus, about 17 times that of the earth.

It is named after Neptune in Roman mythology. Because Neptune is the king of Poseidon, it is translated into Neptune.

3. Neptune's atmosphere is mainly composed of hydrogen and helium, and there is a trace of methane, which is one of the reasons why the planet appears blue.

4. Neptune is the strongest wind in the solar system, with the wind speed as high as 2 100km/h/h, and its cloud top temperature is -2 18℃(55K), which is one of the coldest regions in the solar system, while the core temperature is about 7000℃.

Neptune was discovered on123 September, 846, and it is the only planet that was unexpectedly discovered through mathematical prediction rather than observation.