If we know the surface temperature and intrinsic brightness of a star we can find its
A) mass.
B) size.
C) age.
D) distance.
Correct Answer:
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Q23: The color of a relatively hot star
Q24: Stars whose intrinsic brightness and period of
Q26: In the HR diagram, most stars are
A)
Q27: The distance of a star from the
Q28: The star nearest to the sun is
Q30: Stars at the upper end of the
Q30: A star must have a certain minimum
Q33: Red giant stars
A) are not very bright.
B)
Q34: The main sequence on the HR diagram
Q39: There is a surprisingly small variation among
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