A Magellanic spiral galaxy is a spiral galaxy with only one spiral arm. Magellanic spiral galaxies are classified as the type Sm ; the prototype galaxy and namesake for Magellanic spirals is the Large
Ngc 5204 hst 555 R814GB606
Merging galaxies NGC 4676
The Large Magellanic Cloud revealed by VISTA
An Irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Irregular galaxies do not fall into any of the regular classes of the Hubble seque
NGC 1427A, an example of an irregular galaxy. It is an Irr-I category galaxy about 52 Mly distant.
Blue compact dwarf galaxy ESO 338-4
IC 4710 lies roughly 25 million light-years away in the southern constellation of Pavo.
Irregular galaxy IC 3583 has been found to have a bar of stars running through its center.