Fun Fact:
Andromeda, our sister galaxy appears 6 times larger than our moon in our night sky. Or rather it would appear so if it were brighter. Instead of being able to see the whole galaxy in our night sky, we can only see the brightest part of it's core, which appears star sized for us.
Were it to be bright enough for us to see the whole galaxy, it would look like this for us compared to our moon.