APOD 3.6-Galaxies away

The group of galaxies pictured here are about 45o million light years away from where you are sitting right now. This is a galaxy cluster known as Abell SO740.
This image captures numerous galaxies, the biggest being the elliptical galaxy ESO 325-G004. This giant galaxy spans over 100000 light years and has over a 100 billion stars. It is comparable in size to our own galaxy.