The galaxy also has a satellite Elliptical galaxy called PGC (Principal Galaxies Catalogue) 1563523.
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If they collide, the chance of individual stars colliding with each other is extremely low, but instead the two galaxies will merge to form a single elliptical galaxy over the course of about a billion years.
A2261-BCG (short for Abell 2261 Brightest Cluster Galaxy) is a huge elliptical galaxy in the cluster Abell 2261.
A recent study of one of the satellite galaxies of the Milky Way, known as the Sagittarius Dwarf Elliptical Galaxy (SagDEG), suggest that SagDEG may have helped generate some the Milky Way's spiral structure when it passed repeatedly through the plane of our galaxy over the past few hundred million years.
Messier 110 (M110), an elliptical galaxy in the constellation Andromeda
Messier 32, an elliptical galaxy in the constellation Andromeda