Star clusters or star clouds are groups of stars. Two types of star clusters can be distinguished: globular clusters are tight groups of hundreds of thousands of very ...

A group of stars held together by gravitational attraction; the two chief types are open clusters (composed of from 12 to hundreds of stars) and globular clusters ...

Globular Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars. They populate the halo or bulge of the Milky ...

Star Clusters section of astrophysics option for NSW HSC Physics course.

Stars do not occur in space at completely arbitrary places. Some, such as the Sun, are single (field star), but others are members of pairs or form multiple-star systems.

Many stars in the universe are found grouped together as star clusters. Star clusters are groupings of stars held together by a common gravitational bond. They vary ...

An index of space photo galleries. ... NGC5139 A Globular Star Cluster. This dense cluster of stars is so bright that the ancients thought it was a single bright ...

An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open ...

Open Star Clusters Click icon to view open clusters of Messier's catalog >> Messier's open clusters; Links. The icon shows the Southern open cluster NGC 3293.

STAR CLUSTERS. Open clusters are found in the disk of the Galaxy, and therefore lie largely in the plane of the Milky Way. Many of the closer ones, including those ...