Question

1 of 10
what are the two characteristics used to determine a star’s position on the h-r diagram?
a life cycle stage & size
b distance & age
c luminosity & temperature

Explanation:

The Hertzsprung - Russell (H - R) Diagram is a graphical tool that astronomers use to classify stars according to their luminosity (brightness) and temperature (which is related to their spectral type).

Answer:

C. Luminosity & Temperature