Author Question: Two stars are both spectral type K2V; if the closer is magnitude +3.7, and the fainter is magnitude ... (Read 9 times)

mckennatimberlake · **on:** Jul 27, 2018

Two stars are both spectral type K2V; if the closer is magnitude +3.7, and the fainter is magnitude +8.7, then the brighter star is about ________ times closer.

Fill in the blank(s) with correct word

Question 2

Why are collisions between galaxies more likely than collisions between stars within a galaxy?

A) Galaxies have higher redshifts than stars.
B) Galaxies travel through space much faster than stars.
C) Galaxies are much larger than stars.
D) Relative to their sizes, galaxies are closer together than stars.