Sentence examples for many open clusters from inspiring English sources
Auriga has many open clusters and other objects because the Milky Way runs through it.
Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur astronomers.
Many studies of the component stars of open clusters have shown that the luminosity functions of these objects vary widely.
Open clusters contain from a dozen to many hundreds of stars, usually in an unsymmetrical arrangement.
In 1930, from measurements of angular sizes and distribution of open clusters, Robert J. Trumpler of Lick Observatory in California, showed that light is absorbed as it travels through many parts of space.
There are some extremely young open clusters.
Open clusters share in the galactic rotation.
Then the granddaddy of all open clusters, M-13.
Because of the high luminosity of their brightest stars, some open clusters have a total luminosity as bright as that of some globular clusters (absolute magnitude of −8), which contain thousands of times as many stars.
Open clusters are strongly concentrated toward the Milky Way.
Most globular clusters have smaller metal-to-hydrogen ratios than do open clusters or the Sun.
