Galaxy clusters Galaxy clusters Abell 1835 is a galaxy cluster in the Abell catalogue. It is a cluster that also lenses more distant background galaxies to make them visible to astronomers. ...more on Wikipedia about "Abell 1835"
Abell 2029 is a large cluster of galaxies a billion light years away in the constellation Serpens, close to its boundary with Virgo ** . The central galaxy is perhaps the largest known, with estimates ranging from 5.6 to over 6 million light years across; contrast this with the Milky Way, which is 100,000 light years across. ...more on Wikipedia about "Abell 2029"
Galaxy cluster Abell 2218 is acting as a powerful lens, magnifying all galaxies lying behind the cluster core. The lensed galaxies are all stretched along the cluster's center and some of them are multiply imaged. Those multiple images usually appear as a pair of images with a third — generally fainter — counter image, as is the case for the very distant object. ...more on Wikipedia about "Abell 2218"
The Antennae Galaxies are a pair of galaxies (NGC 4038 + NGC 4039) undergoing a violent collision some 68 million ly. away in the constellation Corvus. They are placed in the Creater cloud and in the NGC 4038 group. The galaxies are known as the "Antennae Galaxies" because the two long tails of stars, gas, and dust thrown out of the galaxies as a result of the collision resemble the antenna of an insect. The nuclei of the two galaxies are joining to become one supergalaxy. Most galaxies probably undergo at least one significant collision in their lifetimes. This is likely the future of our Milky Way when it collides with Andromeda. ...more on Wikipedia about "Antennae Galaxies"
The Coma Cluster (Abell 1656) is an huge galaxy cluster and the prototypical rich cluster with over a thousand member galaxies known. Besides these, some thousands of smaller systems and a lot of dark matter is supposed. ...more on Wikipedia about "Coma galaxy cluster"
Galaxy groups and clusters are the largest gravitationally-bound objects. They form the densest part of the large scale structure of the Universe. In models for the gravitational formation of structure with cold dark matter, the smallest structures collapse first and eventually build the largest structures, clusters of galaxies. Clusters are then formed relatively recently between 10 billion years ago and now. Groups and clusters may contain from ten to thousands of galaxies. The clusters themselves are often associated with larger groups called superclusters. ...more on Wikipedia about "Groups and clusters of galaxies"
An almost complete catalogue of approximately 4000 clusters with at least 30 members to a redshift of z = 0.2. Originally compiled by George Abell in 1958 using the plates of POSS, and extended to the southern hemisphere by Abell, Corwin and Olowin in 1987. ...more on Wikipedia about "List of galaxy clusters"
Tell your opinion about www.shortopedia.com Galaxy_clusters
This article is about the astronomical phenomenon. For the geological phenomenon see radiohalo. ...more on Wikipedia about "Radio halo"
Robert's Quartet or AM 0018-0485 is the name given to the gravitationally interacting group of galaxies NGC 87, NGC 88, NGC 89, and NGC 92 by Halton Arp, and Barry F. Madore who compiled A Catalogue of Southern Peculiar Galaxies and Associations ( 1987). ...more on Wikipedia about "Robert's Quartet"
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Galaxy clusters".
| MAIN PAGE | MAIN INDEX | CONTACT US |