Author Question: If a star were moved 10 times farther away, its apparent magnitude would drop by five magnitudes. ... (Read 55 times)

Medesa · **on:** Jul 27, 2018

If a star were moved 10 times farther away, its apparent magnitude would drop by five magnitudes.

Indicate whether the statement is true or false

Question 2

What is true of spiral galaxies?

A) They are much less common at larger redshifts.
B) They are relatively rare in regions of high galaxy density.
C) They are only found in the center of rich galaxy clusters.
D) They have never been seen to have large redshifts.
E) They evolve from giant ellipticals.