Question

which of these properties is the best measure of a stars brightness? (1 point)
○ size
○ age
○ absolute magnitude
○ apparent magnitude

Explanation:

Size and age do not directly measure a star's brightness. Apparent magnitude measures how bright a star appears from Earth, which is affected by distance. Absolute magnitude measures a star's intrinsic brightness by standardizing the distance to 10 parsecs, making it the best measure of a star's actual brightness.

Answer:

absolute magnitude