Multiple Choice
Which is NOT needed to compute a distance to a star by the spectroscopic parallax method?
A) the mathematical relationship among distance, absolute magnitude, and apparent magnitude
B) the star's stellar parallax
C) the star's apparent magnitude
D) the star's luminosity
Correct Answer:

Verified
Correct Answer:
Verified
Q42: The statement that the apparent magnitude of
Q43: If we restrict our measurements to a
Q44: A star has a surface temperature of
Q46: Use the Hertzsprung-Russell diagram (Figure 10-7)and the
Q50: Two stars have the same spectral classification,say,M2,but
Q51: Optical glass filters are used to select
Q52: The absolute magnitude of a star is
Q106: How do two unequal-mass stars in a
Q117: The sequence of letters that is used
Q227: Stellar parallax appears because<br>A) Earth rotates about