Multiple Choice
Vega is an A0 V star. Based on this information, which of the following are true
I.Vega has a surface temperature less than the Sun.
II.Vega has a mass that is greater than that of the Sun.
III.Vega is more luminous than the Sun.
IV.Vega is located in the upper left-hand corner in the H-R diagram.
A) I & II
B) II & III
C) II, III, & IV
D) I, II, & III
E) I, II, III, & IV
Correct Answer:
Verified
Correct Answer:
Verified
Q123: The absolute magnitude of a star is
Q124: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" As shown in the
Q125: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" -By how much
Q126: Binary (double) stars can be detected by<br>A)being
Q127: Absorption lines in the spectra of supergiant
Q129: Stars of spectra type K have strong
Q130: The most accurate way to determine the
Q131: Describe two methods that could be used
Q132: Table 8-1<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt="Table 8-1
Q133: To observe a visual binary, we must