The Sun's mass makes up about 99.86 percent of the mass in our solar system. It's diameter is about 865,000 miles (1,392,000 kilometers) — that diameter could wrap around the Earth 109 times. 98 percent of the star's mass is made up of helium and hydrogen.
More Planetary Facts:
- The Sun is about 93 million miles (149.6 million kilometers) from Earth, but takes just a little more than eight minutes for the Sun's light to reach Earth.
- The largest planet in our solar system is Jupiter — by volume, 1,000 Earths would fit inside Jupiter. Jupiter's diameter is about a tenth of the Sun's at 88,846 miles (142,984 kilometers).
- Saturn is the second largest planet in our solar system, but it's less dense than any other planet. In fact, it density would allow it to float if you had a body of water large enough.