What are the two most important intrinsic properties used to classify stars?
A) Mass and age
B) Luminosity and surface temperature
C) Distance and luminosity
D) Distance and surface temperature
E) Distance and color
Answer: B
What are the two most important intrinsic properties used to classify stars?
A) Mass and age
B) Luminosity and surface temperature
C) Distance and luminosity
D) Distance and surface temperature
E) Distance and color
Answer: B