Meade Instruments Coronado SolarMax II Series - Manual (Page 15)

15
Solar Facts
The Sun is on average 93 million miles (150 million km) away from Earth and 900,000 miles (1.4 million
km) across.
The Earth is about 8,000 miles (13,000 km) across.
Think of the Sun as a basketball and Earth as pin head and you have the proper proportions.
It takes a little over 8 minutes for light from the Sun to reach Earth.
Approximately 1 million earths would fi t inside the Sun.
Solar radius =695,990 km =432,470 mi =109 Earth radii
Solar mass =1.989 10 30 kg =4.376 10 30 lb =333,000 Earth masses
Solar luminosity (energy output of the Sun) = 3.846 1033 erg/s
Surface temperature =5770 K =10,400 °F
Surface density =2.07 10 -7 g/cm3 =1.6 10 -4 Air density
Surface composition =70% H, 28% He, 2% (C, N, 0, ...) by mass
Central temperature =15,600,000 K =28,000,000 °F
Central density = 150 g/cm3 =8x Gold density
Central composition =35% H, 63% He, 2% (C, N, 0, ...) by mass