Two stars,one classified A4 V and the other F8 V,have the same apparent magnitude.There is no significant amount of absorption of starlight by interstellar material.From this information we know that
A) the A4 V star is closer to the Sun than F8 V.
B) the A4 V star is smaller than F8 V.
C) the A4 V star is farther from the Sun than F8 V.
D) both stars are at the same distance from Sun.

Question

Quizplus · Accepted Answer

The A4 V star is hotter and more luminous than the F8 V star. If both stars have the same apparent magnitude but the A4 V star is inherently brighter, it must be farther away to appear as bright as the less luminous F8 V star.

Two Stars,one Classified A4 V and the Other F8 V,have