Makes life on our planet possible by giving us great amounts of light and heat.

Contains about 98% of the mass of the entire Solar System.

Is just a medium sized star (yellow dwarf). It is about 1.4 million kilometers in diameter.

Is the center of our Solar System. All the planets and other objects orbit around it.

Is very gaseous, and made up mostly of hydrogen.

Contains darkspots that are known as sunspots.