Question

The statement that the apparent magnitude of a variable star has increased indicates that its

A) brightness has increased.
B) surface temperature has decreased.
C) brightness has decreased.
D) surface temperature has increased.

Answer 1

The apparent magnitude of a variable star increases when its brightness decreases.

Step-by-step explanation:

The statement that the apparent magnitude of a variable star has increased indicates that its brightness has decreased. The apparent magnitude is a measure of how bright a star appears to an observer on Earth. When the apparent magnitude increases, it means the star appears dimmer or less bright.