Page "Capricornus" Paragraph 6

One galaxy group located in Capricornus is HCG 87, a group of at least three galaxies located 400 million light-years from Earth ( redshift 0. 0296 ).

It contains a large elliptical galaxy, a face-on spiral galaxy, and an edge-on spiral galaxy.

The face-on spiral galaxy is experiencing abnormally high rates of star formation, indicating that it is interacting with one or both members of the group.

Furthermore, the large elliptical galaxy and the edge-on spiral galaxy, both of which have active nuclei, are connected by a stream of stars and dust, indicating that they too are interacting.

Astronomers predict that the three galaxies may merge millions of years in the future to form a giant elliptical galaxy.