The brightest star in the night sky ranks among the top ten bright stars.

There are many stars in the sky. Some stars are obviously brighter, while others are not. Do you know the name of the brightest star? Next, let's reveal the top ten bright stars according to the constellation knowledge. See how many names you know! Let's look at the stars. The brightest star in the night sky ranks 10. Betelgeuse is one of the brightest stars in the sky. It is a part of Orion and is called Orion Alpha. The variable star is a red giant with a temperature of about 3,600 Kelvin (3,325 degrees Celsius). Its mass is 13 to 17 times that of the sun, and its radius is about 1200 times that of the sun. Because a star is variable, so is its brightness. Its apparent magnitude is 0.50. (Apparent magnitude refers to the brightness of stars seen by observers with the naked eye; The magnitude of apparent magnitude can be negative, and the smaller the value, the higher the brightness, and vice versa. 9. It is named after the brightest star in Orion. In our night sky, it is the ninth brightest spot visible to the naked eye. The No.1 Water Resources Commission is a blue and white star of class B, with a temperature of 10000 to 20000 Kelvin (9725- 19725 degrees Celsius). The mass is 6.7 times that of the sun and the brightness is about 3 150 times that of the sun. We can only see a little bit in the sky, because the distance between us and the Water Resources Commission is 139 light years. It is worth noting that this star rotates very fast because its shape is flat. Its apparent magnitude is 0.46. 8. Ophiuchus is the brightest star in the constellation Canine. This is a face of the winter triangle constellation. It is worth noting that this star is one of the closest stars to our system, about 1 1.5438+0 light years away. It is a binary star, which is why we should see two stars in the sky: ProcyonA and ProcyonW. Nanhe constellation is a yellow and white star with a temperature as high as 9700 Kelvin (9425 degrees Celsius). Its luminosity is similar to that of the sun, and its brightness is 7.5 times that of the sun. Nanhe constellation is a rather dim white dwarf, with a distance of 16 astronomical unit, which is equivalent to the distance from the sun to Uranus. The apparent magnitude of this star is 0.38. 7. Betelgeuse Rigel is a blue Supergiant star with a temperature of about 12 130 Kelvin (1 1856 degrees Celsius), also known as beta Orion. Although the celestial body is about 860 light years away from the sun, it can be seen in the sky. Its diameter is 74 times that of the sun, and its brightness is about 654.38+0.3 million times that of the sun. At the same time, it can illuminate the nearby dust clouds. If you put an object at a distance of Betelgeuse 1 astronomical unit, it will be evaporated and dissipated by the stellar wind. The apparent magnitude of this star is 0. 12. 6. Alpha Auriga is a binary star and a yellow giant with a temperature of about 5,700 Kelvin (5,426 degrees Celsius). From 2 1000 BC to 160000 BC, Alpha Auriga is the brightest star in our sky. The apparent magnitude of this star is 0.08. Vega Vega, also known as Alpha Lyra, is the fifth brightest star in the sky. Its temperature change can reach 10060 Kelvin (9786 degrees Celsius). It is 25.3 light years from the sun. The apparent magnitude of this star is 0.03. Arcturus is the brightest star in the northern hemisphere. Its brightness is 1 10 times that of the sun, and its radius is about 25 times that of the sun. According to Hipparcos satellite, arcturus is about 36.7 light years away from our earth. Its surface temperature is 4300 Kelvin (4026 degrees Celsius). The apparent magnitude of this star is -0.05. 3. Toliman, also known as Alpha Centauri, is a trinity star system, which is located in the south of the sky and is the closest star system to the sun. In this three-in-one system, Alpha Centauri A and Alpha Centauri B can be seen by naked eyes in the sky, but they are a single point, and the temperatures of the two main stars are not higher than 5750 Kelvin (5476 degrees Celsius); Alpha Centauri C, also known as proxima centauri, is relatively close to our solar system, about 0.2 1 light-year. The apparent magnitude of this star is -0.27. Laonian is the second brightest star in the night sky. It is a yellow-white Supergiant star with a temperature of about 7350 Kelvin (7076 degrees Celsius). According to the data of Hipparcos satellite, it is about 3 10 light-years away from the solar system. The mass, radius and brightness of the carina alpha are 9 times, 65 times and 14- 15 times respectively. The apparent magnitude of this star is -0.72. 1. Sirius is the brightest star in the night sky, which can also be called alpha dog star. It is more than 22 times brighter than the sun, and it is very close to our galaxy, which is why we regard Sirius as a very bright point at night. It is about 8.67 light years away from us. Sirius is a part of the main sequence star, and its temperature is about 9940 Kelvin (9666 degrees Celsius). It is worth noting that Sirius is a binary star, 20 astronomical units apart from each other. The apparent magnitude of this star is-1.46.