If we know the temperature and luminosity of a star,we can also calculate its
A) radius.
B) mass.
C) chemical composition.
D) All of the above
Correct Answer:
Verified
Q29: The star named Capella has an apparent
Q30: Star C is a red star.Star D
Q31: The spectral class of a star is
Q32: If a star's distance is 10 pc,what
Q33: What spectral class is the Sun?
A) A0
B)
Q35: The bright star named Rigel has a
Q36: The faster-moving star in a binary is
A)
Q37: Two main-sequence stars have the same temperature.If
Q38: Which sequence correctly lists the spectral classes
Q39: Stars A and B appear equally bright,but
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