High School

Imagine that you are an astronomer and you have detected a star with a temperature of about 3700 Kelvin and a luminosity of about 0.1. Examine the H-R diagram and explain what spectral class and part of its life cycle the star could be in.

Answer :

Final answer:

The star could be in the M spectral class and the main-sequence phase of its life cycle based on its temperature and luminosity.

Explanation:

Based on the given information, the star with a temperature of 3700 Kelvin and a luminosity of 0.1 falls in the class M on the H-R diagram. The spectral class M represents cool stars with temperatures ranging from 2500 to 3700 Kelvin. Luminosity class 0.1 indicates that the star is likely in the main-sequence phase of its life cycle.

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