The Temperature of the surface of Sun is_______?
A. 5,778 Kelvin
B. 6,778 Kelvin
C. 7,778 Kelvin
D. 9,778 Kelvin
A. 5,778 Kelvin
B. 6,778 Kelvin
C. 7,778 Kelvin
D. 9,778 Kelvin