What stars are there in the sky?

1, Vega: Also known as Vega I or Alpha Lyra, it is the brightest star in Lyra, about 25 light years away from the Earth. Because of its extremely high rotation speed, it is obviously oblate, and the equatorial radius is larger than the polar radius by 19%.

2. Altair: Also called "Altair" or "General", it is a corner of the summer triangle in starry sky observation.

3. Old Star: Alpha Star in Carina, about 365,438+00 light years away from the solar system. The brightness is the second brightest star in the whole day, second only to Sirius.

4. Sirius: Also known as Alpha Canis, it is the brightest star except the sun in the whole day, but it is darker than Venus and Jupiter and brighter than Mars most of the time. Sirius generally refers to Sirius A, and its main system consists of a blue-white-blue dwarf and a blue-white dwarf.

5. Neptune: the apparent magnitude is about 7.70. , need to use astronomical telescope for observation. Neptune is blue to the naked eye, and westerners are named after Neptune, the sea god in Roman mythology. When Li and others translated 1859, they named their Chinese translation Neptune.

Pluto is a dwarf planet in the Kuiper Belt. Pluto is the first discovered Kuiper Belt object, the first ghost-like object and the second largest dwarf planet in the solar system.