Multiple Choice
The surface temperature of a nearby star can be determined MOST precisely by measuring what parameters?
A) position of the star on the H-R diagram
B) Doppler shift of the star's spectral lines
C) relative strengths of emission lines from different atoms and ions in the star's spectrum
D) relative strengths of absorption lines from different atoms (e.g., H, Ca) and molecules (e.g., TiO) in the star's spectrum
Correct Answer:
Verified
Correct Answer:
Verified
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