Astronomy View all facts Glossary Help |
physical object > natural object > celestial body > solar system > our solar system |
our solar system comparison table |
Subject | is part of | has definition | is a kind of |
---|---|---|---|
solar system | A star with planets | celestial body | |
our solar system | local bubble | The Sun and all objects gravitationally bound to it. The solar system is roughly a sphere with a radius greater than 100,000 AU, with the Sun at the center. The Sun is overwhelmingly the dominant object. Planets, satellites, and all interplanetary material together comprise only about 1/750 of the total mass. Geochemical dating methods show that the solar system chemically isolated itself from the rest of the Galaxy (4.7 ± 0.1) × 109years ago. | solar system |
Up: solar system