Parallax of a nearby star is used to estimate its
A) distance from Earth.
B) apparent magnitude.
C) physical size or diameter.
D) surface temperature.
Correct Answer:
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Q30: What is the relationship between stellar parallax
Q31: Star A has a luminosity LA =
Q32: The relative brightness of stars as we
Q33: Which of the following is one of
Q34: Luminosity is measured in
A) watts per square
Q36: The luminosity of a star is
A) another
Q37: If the Hipparcos satellite measures the parallax
Q38: Parallax is the
A) distance to an object,measured
Q39: What does apparent magnitude tell us about
Q40: We can tell that some stars are
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