Galactic clusters radii range from 1 to 5 Megaparsecs. A megaparsec is about 3.3 million light years.
There is no specific name since all sorts of objects can orbit a larger body. A galaxy, for example, can orbit the centre of a galactic cluster.
A globular cluster is a part of a galaxy, usually found in the halo surrounding the galactic center. Globular clusters are densely packed groups of thousands to millions of stars held together by gravity. They orbit the center of their host galaxy along with other components such as the spiral arms and bulge.
a cluster of stars.
Which orbit would that be? The galactic orbit, the solar orbit, the local cluster orbit? From what viewpoint? Above or below the galactic plane, the planetary system plane, from the point of view of a different place in the local cluster than on earth itself?
The cluster is in scorpius.
A galactic cluster is a collection of hundreds or even thousands of galaxies which are bound together by their gravity, each one containing billions of stars. The mass of a galactic cluster could be a quadrillion times the mass of the sun.
mILKY wAY
The galactic cluster in which the Milky Way is located is called The Local Group. (Not very inspiring, is it?)
Which orbit would that be? The galactic orbit, the solar orbit, the local cluster orbit? From what viewpoint? Above or below the galactic plane, the planetary system plane, from the point of view of a different place in the local cluster than on earth itself?
None. The only two galactic object in the constellation are:- * M41 is an open cluster * NGC 2362 is an open cluster
There is a easy way of figuring out. Look below Earth is a tiny dot compared to the solar system. The solar system is a tiny dot in the milky way. The milky way is a tiny dot to the galactic clusters. The galactic cluster is a tiny dot to a super cluster. The super cluster is a tiny dot to the Void. The void is a tiny dot to the universe.
Viewed from the Galactic North Pole, the Milky Way galaxy is moving anticlockwise.
The solar system orbits around the center of our galaxy, the Milky Way. The Milky Way orbits with a number of other galaxies around the center of our galactic cluster, called the Local Group. The Local Group rotates in the Virgo Supercluster (a cluster of galactic clusters). It is unclear if superclusters rotate around anything.
For sure - galactic clusters. Expansion of the universe is demonstrated via the redshift of galactic clusters (outside of the local galactic cluster which hosts the Milky Way galaxy). Pulsars may also provide some insight into expansion via the emission of their light signatures, but it is not generally considered a specific support (in and of itself).
When we say "bigger" here, we could be talking about the volume of space the objects take up, or the number of stars involved. In either case, it's tough sledding to make comparisons. In looking at the volume of space taken up by galactic clusters, we see galaxies bigger and smaller than our own Milky Way clustered together. Additionally, we can look at the sum of the volumes of the individual galaxies, or the volume of space that is "under control" of the gravity binding the galaxies in the cluster. In the former case, several tens the volume might be involved. In the latter, 106 to 109 times the volume might be too small as the distances between galaxies, even in a galactic cluster, is enormous. From 3 to 5 times or several tens of times the number of stars could be in a galactic cluster when compared to our Milky Way. We're still finding galactic clusters, and then categorizing them and cataloging them. Making comparisons is still a large challenge.
In the Milky Way galactic halo, orbiting the galactic center in a long elliptical orbit around the galactic center
A collection of galactic groups form a cluster of galaxies. A supercluster is the largest known structure. Galaxies can exist outside of a group or cluster, but the estimated amount is only about 5%. However, there is a possibility that these galaxies may have interacted or merged with other galaxies in the past,