More than 100 globular clusters are scattered throughout the night time sky. An easily seen example of an open star cluster is the Pleiades Open Cluster or M45. M45 is located in the constellation Taurus and is about 415 light years from earth. Looking like six faint stars to the unaided eye, binoculars reveal many more stars. Galaxies Galaxies are huge gatherings of stars, gas and dust all bound together by gravity.
Galaxies come in all sizes and types.
There are spiral, elliptical and irregular galaxies. Galaxies have masses that range from 100,000 to 10 trillion times that of our own sun. There are millions and millions of galaxies within our universe. Recently, the Hubble Space Telescope was pointed to an area of space that in the past showed no visible galaxies or stars. The resulting picture showed this area to contain many more galaxies.