What planet is bigger than the sun?

1, proxima centauri

Proxima centauri is the third star of the triad of Nanmener (Alpha Centauri), which is also called Alpha Centauri C according to Bayer nomenclature. It is the closest star to the solar system (4.22 light years). It was discovered in South Africa in 19 15 by Robert innis, then director of the Johannesburg Joint Observatory. Proxima b may have life.

Proxima centauri, located in Centauri, is a member of Alpha Trinity Centauri (Nanmen II), 4.2 light-years away from the Earth, and is the closest known star to the sun.

2. Red Supergiant star

Red giant, the name of the star. Like other stars, during the main sequence, hydrogen will combine into helium, but the life span of red Supergiant star is short. The core of a star whose mass is 0/5 times that of the sun/kloc-will run out of hydrogen after10 million years. Because of its huge mass, the temperature and density of its core are enough for helium to combine into carbon and form a hydrogen combustion shell at the same time. Helium nuclei can burn stably because the gravity of a star is large enough to control it. Because heat is generated by the core, the expansion outside the star will exceed that of the red giant, thus forming a red Supergiant star.

3.antares

Scorpio antares? The alpha star located at the tail of Scorpio (the main star of Scorpio) is the loneliest first-class star in the whole day, but there are many bright second-class stars nearby, and it is also the brightest star of Scorpio. China, also known as fire in ancient times, belongs to the heart of the Black Dragon, the Dragon Heart, which is used to determine the seasons. Antares is a famous red Supergiant star, which can emit lux light. It is located in the south, and its position is the highest at dusk in May every year. At dusk in July, the position of Antares on Mars gradually declined from Zhongtian to the west. "Know that summer is fading and autumn is coming."

4. Cepheus VV

Cepheus VV is a binary system located in Cepheus, which consists of a red Supergiant star and a blue dwarf star. These two stars fill each other's Roche leaves. This binary system is about 4900 miles away from the earth.

This is an eclipse binary star. In other words, these two stars revolve around the common center of mass, and their mutual hiding leads to the change of their magnitude when we observe the earth. Its main star is a red Supergiant star. This is a form of stars in their later years, with large volume, low density and low surface temperature. The radius of this star is about 1748 ~ 1900r ⊙. This radius is very large. If you put it in the position of the sun, you can include Jupiter.

5. Sirius Also known as DOG STAR

Sirius is Alpha Canis, located in Canis Canis. Sirius has an apparent magnitude of-1.46, which 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 is a blue-white main sequence star accompanied by a white dwarf star. The center of mass of the system is about 8.6 light years away from the Earth. Sirius B, the companion of a white dwarf, is the earliest observed white dwarf and one of the most massive white dwarfs.