:: SUN :: 

Metric  Scientific Notation  By Comparison  
Discovered By  Known by the Ancients  
Date of Discovery  Unknown  
Equatorial Radius  695,500 km  6.955 x 105 km  09 x that of Earth 
Equatorial Circumference  4,379,000 km  4.36 x 106 km  109 x that of Earth 
Volume  1,142,200,000,000,000,000 km3  1.1422 x 1018 km3  1,300,000 Earths 
Mass  1,989,000,000,000,000,000,000,000,000,000 kg  1.989 x 1030 kg  332,900 x Earth's 
Density  1.409 g/cm3  0.255 that of Earth  
Surface Area  6,087,799,000,000 km2  6.0787 x 1012 km2  11,990 Earths 
Equatorial Surface Gravity  274.0 m/s2  2.740 x 102 m/s2  28 x Earth's surface gravity 
Escape Velocity  2,223,720 km/h  6.177 x 105 m/s  55 x Earth 
Sidereal Rotation Period (Length of Day)  25.38 Earth days 609.12 hours  
Effective Temperature  5504 °C  5777 K  
Additional
Information


Spectral Type  G2 V  
Synodic Period  27.2753 days  
Velocity Relative to Near Stars  19.7 km/s  
Solar Constant (Total Solar Irradiance)  1.365  1.369 kW/m2
(at the mean distance of the earth from the Sun, about one AU) 