Sun
NASA Solar Dynamics Observatory
G-type main sequence star

Sun

Supplies nearly all energy reaching Earth.

Object typeG-type main sequence star
Diameter1.39 million km
Mass333,000 Earth masses
Gravity274 m/s²
Average temperature5,500°C surface; 15 million°C core
Distance from the SunCenter of the Solar System
Orbital periodOrbits Milky Way in about 230 million years
Rotation periodAbout 25-35 Earth days
Number of moons0
AtmospherePhotosphere, chromosphere, corona
DiscoveryKnown since prehistory

Interesting Facts

  • Supplies nearly all energy reaching Earth.
  • Solar activity can affect satellites and power grids.

Major Missions

  • SOHO
  • Parker Solar Probe
  • Solar Orbiter