Solar System

Pluto is not considered a planet because it is too small and its orbit is influenced by another star.

Yes, the standards for what constitutes a planet have changed several times.

The Moon gets its light from the Sun.

The solar system consists of the Sun, planets, and all other objects that orbit the Sun.

1 AU (Astronomical Unit) is the average distance from the Earth to the Sun.

Neptune is 30 AU away from the Sun.

AU stands for Astronomical Unit, a standard unit of measurement used to describe distances within the solar system.

The main components of the solar system include the Sun, eight planets, their moons, dwarf planets, asteroids, comets, and meteoroids.

A planet is a celestial body that orbits the Sun, is spherical in shape, and has cleared its orbit of other debris, while a dwarf planet is similar but has not cleared its orbit.

The Sun is the central star of the solar system, providing light and gravitational pull that keeps the planets and other objects in orbit.