Multiple Choice
A star is 10 parsecs from Earth. Which statement is true?
A) The star's apparent magnitude is smaller than its absolute magnitude.
B) The star's parallax is 1.0 arc seconds.
C) The star is about 33 ly away.
D) The star is in a different galaxy.
E) The star's apparent magnitude is larger than its absolute magnitude.
Correct Answer:
Verified
Correct Answer:
Verified
Q87: How is proper motion measured?
Q128: Our Sun lies about the middle of
Q129: What can be said with certainty about
Q130: Must we see both spectral lines splitting
Q131: If spectroscopic luminosity classification gives us an
Q132: What physical property of a star does
Q134: The Sun, at absolute magnitude +4.8, would
Q135: The parallactic angle is the total shift
Q136: Most naked- eye stars would fall to
Q138: Arcturus, the brightest star of spring skies,