Which stellar spectral type has strong molecular absorption lines in its optical spectrum?
A) O
B) B
C) G
D) K
E) M
Correct Answer:
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Q5: Which of the following statements about spectral
Q7: The spectral sequence sorts stars according to
A)mass.
B)surface
Q8: You measure the parallax angle for a
Q9: What are the standard units for luminosity?
A)
Q11: A star's luminosity is the
A) apparent brightness
Q13: Since all stars begin their lives with
Q14: The most distant stars we can measure
Q15: You measure the parallax angle for a
Q17: Which of the following terms is given
Q39: Which of the following best describes the
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