The star named Circini has the spectral type and luminosity class of O 8.5 V.Based on this information,how does Circini compare to the Sun?
A) Circini is cooler and larger than the Sun.
B) Circini is cooler and smaller than the Sun.
C) Circini is hotter and more luminous than the Sun.
D) Circini is hotter and less luminous than the Sun.
Correct Answer:
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