Astronomers Can Measure a Star's Mass in Only Certain Cases

question 10

Multiple Choice

Astronomers can measure a star's mass in only certain cases.Which one of the following cases might allow astronomers to measure a star's mass?

• A)The star is a member of a binary star system.
• B)The star is of spectral type G.
• C)The star is of spectral type A.
• D)We know the star's luminosity and distance.

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