Question

Suppose the relative distances for a number of galaxies using brightnesses don't agree with the relative distances using apparent sizes. What would you conclude?

Answer 1

In the last section, you used magnitude as a substitute for relative distance. But magnitude can also be converted into a direct measure of relative distance.

Step-by-step explanation:

F is a relative number that compares the arriving radiant flux to a standard: the star Vega in the northern constellation Lyra.