Structures of galaxies Clusters

In the universe Galaxy clusters are huge structures. Galaxies emit a lot of gravity. These causes nearby galaxies attract each other and are merged to form clusters. Our galaxy, the Milky Way, is part of a small cluster called the Local Group . Within a cluster, galaxies rotate around each other, and even frequently collide. The size and mass of the cluster galaxies varies with the form, but the distance between one end and another is always several million light years.

Enormous catalogs

Through the ceiling catalogs are lists of deep sky objects that occupy a fixed position in the sky. They are very useful for amateur astronomers, because they collect the main galaxies, nebulae and star clusters that can be seen with a telescope medium.

In the best known are: Messier catalog: the most famous and the first to be published. He was drafted by the French astronomer Charles Messier in 1769. It brings together 110 objects numbered M1 to M110, in the order in which the Messier discovered while watching the skies for comets.

The survey Ultra Vista and reveal more than 200,000 galaxies

These new images of a small part of the sky, which may go unrecognized, the survey Ultra Vista and reveal more than 200,000 galaxies. It's just a part of a large collection of images of all the polls VISTA, fully processed, now THAT is making available to astronomers around the world. Ultra Vista is a hidden treasure that is being used to study distant galaxies in the early universe as well as many other scientific projects.