irregular galaxies

First, I would like to start off by telling you what an irregular galaxy is. An irregular galaxy is a galaxy that possesses no particular shape, and does not have any sort of structure to it. Iirregualr galaxies are fairly easy to distinguish from one another, first you check whether the galaxy is elliptical or spiral, if not it is safe to say that it is an irregular galaxy These galaxies have many bright stars …

…forty times brighter than the two extensions, this is due to the stellar populations, the nucleus is the centerof an evormous amount of stellar activity. The gas in the nucleus is ionised by the ultraviolet flux from it;s stars. This nucleus therefor appears like a large H II region of about 500 parsecs in size. These irregular galaxies all have one thing in common , they all have extremely bright stars and have no real shape.