The Sun is the center of our Solar System.  We orbit the Sun.  Our Solar System is in the spiral arms of our Galaxy, the Milky Way.  We are about two thirds of the way out from the Galactic Center.  

Sun Details

Radius = 695,970 km

Mass = 1.989 x 10,000000000000000000000000000000 kg

Luminousity = 3.85 x 10,00000000000000000000000 kw

Temperature: center = 15 million kelvin; surface = 6400 kelvin

(for comparison, water boils at 373 kelvin)

Rotation period = 25 days