what is luminosity?\no the amount of energy a star emits in a unit of time\no the brightness of a star as…

what is luminosity?\no the amount of energy a star emits in a unit of time\no the brightness of a star as seen from earth\no the average temperature of a star during its life cycle\no the degree of shift toward the red end of the spectrum

what is luminosity?\no the amount of energy a star emits in a unit of time\no the brightness of a star as seen from earth\no the average temperature of a star during its life cycle\no the degree of shift toward the red end of the spectrum

Answer

Answer:

the amount of energy a star emits in a unit of time

Brief Explanations:

Luminosity measures a star's energy - output rate. It's not about brightness from Earth (which is apparent magnitude), star's average temperature, or red - shift.