1. Galaxies.
- Subjects
GALAXIES ,DWARF galaxies ,ELLIPTICAL galaxies ,MILKY Way ,ASTRONOMY - Abstract
An encyclopedia entry for "Galaxies" is presented. Galaxies range in size from small dwarf elliptical and spiral galaxies to giant elliptical galaxies. They congregate in clusters, the smallest of which has only few dozen galaxies. The Milky Way is part of a poor cluster containing approximately three dozen galaxies called the Local Group. The diameters of galaxies range from 3,000 light-years to more than 500,000 light-years.
- Published
- 2009