You observe a star and you want to plot it on an H-R diagram. You will need to measure all of the following, except the star's
A. mass.
B. distance.
C. apparent brightness.
D. spectral type.
Answer:A
You observe a star and you want to plot it on an H-R diagram. You will need to measure all of the following, except the star's
A. mass. B. distance. C. apparent brightness. D. spectral type.