01
Major Components
- The Sun contains nearly all of the Solar System's mass.
- Eight planets orbit the Sun.
- Dwarf planets occupy distinct dynamical classes.
- Moons orbit planets and smaller bodies.
- Asteroids and comets preserve material from early Solar-System formation.
02
Large-Scale Structure
The Solar System contains inner terrestrial planets, outer giant planets, asteroid populations, trans-Neptunian objects, and more distant reservoirs of icy bodies.