A

David

Darling

lifetimes of stars

type typical mass (Msun) surface temp. (°C) approx. main seq. lifetime (yrs)
O 32 35,000 10,000,000
B 6 14,000 270,000,000
A 2 8,100 800,000,000
F 1.25 6,500 4,200,000,000
G 0.9 5,400 10,000,000,000
K 0.6 4,000 32,000,000,000
M 0.22 2,600 210,000,000,000