How Big Is the Sun?
The Sun Is the Star at the Center of the Solar System. It Is a Nearly Perfect Sphere of Hot Plasma, Heated to Incandescence by Nuclear Fusion Reactions in Its...
The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light, ultraviolet light, and infrared radiation.
How big the sun is compared to Earth?
At about 864,000 miles (1.4 million kilometers) wide, the sun is 109 times wider than Earth, and it accounts for more than 99.8 percent of the solar system's total mass. If it was a hollow ball, more than a million Earths could fit inside it.
What is the real size of the sun?
Radius, diameter & circumference
The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km). You could line up 109 Earths across the face of the sun. The sun's circumference is about 2,713,406 miles (4,366,813 km).
James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.
