1.Spiral galaxy
This galaxy has a pinwheel shape and it also has bulge with several arms around it. Thus this galaxy is a spiral galaxy.
2.Elliptical galaxy
Elliptical galaxies are the largest galaxy in the universe. Elliptical galaxies usually range in shape from sphere to ellipse like a football or a cigar.
3.Irregular galaxy
This kind of galaxies does not have regular hape. If the galaxy is not a Spiral galaxy or a Elliptical galaxy then it become an Irregular galaxy.