Multiple Choice
A star that is 100 pc distant from Earth has an apparent magnitude of m +2.5.According to the equation in Discovery 10-2 in Comins,Discovering the Essential Universe,6th ed.,what is its absolute magnitude?
A) -7.5
B) +7.5
C) -2.5
D) -47.5
Correct Answer:
Verified
Correct Answer:
Verified
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