Multiple Choice
A star is observed to have extremely strong lines of hydrogen,very weak neutral helium,and weak neutral metals.The spectral type of such a star is closest to
A) O5
B) B2
C) A0
D) K5
E) M8
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q8: The apparent magnitudes of stars A and
Q9: Star A has 4 times the radius
Q10: Which of the following correctly describes the
Q11: Suppose you are an astronomer on Jupiter
Q12: Two stars differ by 10 in absolute
Q14: A globular cluster is 1 kiloparsec away.What
Q15: On a certain date,Mars has an apparent
Q16: How distant is a star with a
Q17: The absolute magnitude of a star is
Q18: How much fainter is a twelfth magnitude