Ameasure of the amount of light given off by a star is its

A measure of the amount of light given off by a star is its absolute luminosity or magnitude. Absolute magnitude is the measure of intrinsic brightness of a celestial object. It is the hypothetical apparent magnitude of an object at a standard distance of exactly 10 parsecs (32.6 light years) from the observer, assuming no astronomical extinction of starlight. 

A measure of the amount of light given off by a star is its luminosity. 
It is the intrinsic brightness of a celestial object (as distinct from its apparent brightness diminished by distance).

Thank you for posting your question here at . I hope the answer will help you. Feel free to ask more questions.

Answeris associated with sunny,dry weather;