The sun was shining and he turned into steam. The sun was shining, and he turned into light steam. Fly, fly, fly to the sky and become a white cloud. Fly, fly, fly to the sky and become a white cloud. It's raining, and the little white rabbit runs home.
The sun is the central celestial body of the solar system, accounting for 99.86% of the total mass of the solar system. The eight planets, asteroids, meteors, comets, exoneptune objects and interstellar dust in the solar system all revolve around the sun, and the sun revolves around the center of the Milky Way.
The sun is a star located in the center of the solar system, and it is almost an ideal sphere where hot plasma and magnetic field are intertwined. The diameter of the sun is about1392000 (1.392×10? ) kilometers, equivalent to 109 times the diameter of the earth; The volume is about 6.5438+0.3 million times that of the earth; Its mass is about 2× 10? Kilogram (330000 times that of the earth).
From the chemical composition, about three-quarters of the mass of the sun is hydrogen, and the rest is almost helium, including oxygen, carbon, neon, iron and other heavy elements with mass less than 2%. Nuclear fusion is used to release light and heat into space.
The sun is currently passing through the local bubble region of Orion's arm at the inner edge of the Milky Way. There are 50 nearest star systems within 0/7 light-years from Earth/Kloc-(the nearest star is a red dwarf named proxima centauri, about 4.2 light-years).