The Sun is the star which the Earth orbits.
The Sun in Celestia
Sunshaped toy
Fraunhofer lines diagram
Sunspots
a large sunspot group in 2004
Sun, with a small telescope
Crepuscular rays
The effective temperature of the Sun is 5777 K
Sun's coronet
The Sun seen from Earth
The Sun seen from Earth.
Sunlight reflected on rails
Sun, dusk
3d sun (better enlarged)
Sunset
Sun visible in sky
Solar prominence from STEREO spacecraft September 29, 2008