101 Must Know Cosmic Things: The Galaxy Coma

As you might expect, the galaxy Coma lies within the confines of the constellation Coma Berenices. If you have a large amateur telescope, you can find it 2.7 ° west of the large 4.2 Beta (β) Comae Berenices.

The Coma Cluster is large, with as many as 1,000 galaxies in a 4 ° wide field. The most valuable area is the center 0.5 °, a land that covers as much of the sky as a full moon. The group’s name was Abell 1656, taken from the lists of American astronomer George O. Abell. His first roster was 2,712 teams in most of the northern hemisphere. The expansion (after his death) covering the southernmost sky brought the total to 4,073 galaxy clusters.

Because this galaxy is about 330 million light -years away, not every galaxy in it is going to be static. Furthermore, this group is dominated by elliptical galaxies that show very small details. So, if you can see through a 12-inch telescope or more from a black lens, try to see the best branches.

There are four rays that are brighter than the 12th magnitude: NGC 4884 (magnitude 11.5), NGC 4889 (11.5), NGC 4793 (11.6), and NGC 4874 (11.7). Five before 13th magnitude: NGC 4789 (magnitude 12.1), NGC 4839 (12.1), NGC 4921 (12.2), NGC 4911 (12.8), and NGC 4827 (12.9). If you start with a good geography map, you should know a few more by using these nine galaxies as a starting point.

The Coma Cluster is an unknown proprietor. In 1933, Swiss astronomer Fritz Zwicky studied the movement of galaxies in Abell 1656. He determined that the galaxes he saw surrounded the center of the 400 -pointed galaxy. time is much faster, depending on the size of the group. He called it the black invisible.


Be sure to be careful Astronomy’s full list of 101 cosmic objects you can see. New ones will be added every week in 2022.

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