Sun - Wikipedia
The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. [26] It has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way , most of which are red dwarfs .
The Sun, our Solar System’s star | The Planetary Society
Solar storms frequently launch plasma and radiation into the Solar System. If an intense storm hit Earth, it could damage satellites, power grids, and communication networks. We study the Sun to learn about how stars work, and to help protect our civilization from solar storms.
Solar System - Wikipedia
The principal component of the Solar System is the Sun, a G-type main-sequence star that contains 99.86% of the system's known mass and dominates it gravitationally. [37] The Sun's four largest orbiting bodies, the giant planets, account for 99% of the remaining mass, with Jupiter and Saturn together comprising more than 90%.
In Depth | Sun – NASA Solar System Exploration
The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life …
Solar System Exploration - NASA Science
Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets. An artist's concept of our solar system. Tips, guides, activities, and videos for skywatchers. Eyes on the Solar System: A real-time visualization of our solar system using planetary science data.
NASA Knows: How Does the Sun Behave? (Grades 5-8) - NASA
2024年12月18日 · The Sun is the star of our solar system. Its gravity holds Earth and our planetary neighbors in its orbit. At 865,000 miles (1.4 million km) in diameter, it’s the largest object in our solar system. On Earth, its influence is felt in our weather, seasons, climate, and more. Let’s learn about our dynamic star and its connections to life on ...
Our solar system: The sun information and facts - National …
2018年9月15日 · Compared with the billions of other stars in the universe, the sun is unremarkable. But for Earth and the other planets that revolve around it, the sun is a powerful center of attention. It...
The Sun - Natural History Museum
Explore facts about the Sun, the star at the centre of our solar system. Discover how big and hot it is, what it's made of and what sunspots and solar flares are. Plus, what is the future for the Sun - will it explode?
All About the Sun | NASA Space Place – NASA Science for Kids
6 天之前 · The Sun contains almost ALL of the material in our solar system. 99% of it. All the planets, asteroids and comets add up to less than 1% of the total. The Sun is so far away that it takes light about 8 minutes and 20 seconds for it to get …
Meet the Sun - Center for Science Education
The Sun is a yellow dwarf star at the center of our solar system. Earth and all other objects in our solar system orbit around the Sun due to gravity – the Sun contains over 98% of all mass in the solar system and so exerts a strong gravitational pull. Like other stars, the Sun is a dense ball of gas that creates energy through nuclear fusion ...