The difference in the brightness of a star as seen through two different colored filters, for example, blue and yellow, is directly related to which stellar property?
A) distance from Earth
B) luminosity
C) surface temperature
D) radius

Question

Quizplus · Accepted Answer

The difference in brightness of a star when observed through two different colored filters is related to its surface temperature. This is because the color of a star, which affects its brightness in different filters, is determined by its surface temperature due to Wien's displacement law. Higher temperatures result in bluer (hotter) stars, while lower temperatures result in redder (cooler) stars.

The Difference in the Brightness of a Star as Seen