Multiple Choice
What is a star's luminosity?
A) the amount of energy received per second on 1 m² of a planet's surface exactly 1 AU from the star
B) the total energy emitted by the star into all space per second, measured in watts
C) the apparent magnitude the star would have if it were located exactly 10 ly from Earth
D) the apparent magnitude the star would have if it were located exactly 10 pc from Earth
Correct Answer:
Verified
Correct Answer:
Verified
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