The Sun (Sol) is the star which the Earth orbits.
The Sun in Celestia
Fraunhofer lines diagram
a large sunspot group in 2004
Sun, with a small telescope
The effective temperature of the Sun is 5777 K
The Sun seen from Earth.
Sunlight reflected on rails
3d sun (better enlarged)
Sun visible in sky
Solar prominence from STEREO spacecraft September 29, 2008
view of Sol from LEO (Low Earth Orbit)