The radiant power of a star
P ¯ 0 = 6.35 × 10 26 W
The number density of stars
n ¯ L = 2.17 × 10 − 58 / m 3
The light-blocking radius of a star
r ¯ 0 = 4 × 10 8 m
The radiant emittance of the star’s surface
R ¯ e = 3.16 × 10 8 W / m 2
The temperature of the star’s surface
T ¯ 0 = 8640 K