The Andromeda Galaxy is really large, despite its distance. I have seen it through my telescope and it fills up the whole view, even at low power. It is really large. The Andromeda galaxy is visible through a binocular or telescopen in the city. You can see it with your own eyes in a dark location. The largest galaxy known is an elliptical galaxy in the center of a cluster Abell 2029 and it is 5.6 million light years!
Andromeda galaxy larger than thought-astronomers
Andromeda galaxy larger than thought-astronomers