The Sun Discipline: Education Sun Facts:The Sun is the star at the center of our solar system, and is by far the largest member with a thousand times more mass than all the planets, moons, asteroids and comets put together. The Sun itself is a very typical G-type, main sequence, Population I star. The average distance between the Sun and the Earth is 1 AU or 149,598,000 km.Tags: Sunsolar