Glossary term: Dwarf Galaxy

Description: A dwarf galaxy is a small galaxy that is unusually faint either because of its very small size, its very low surface brightness, or both. It contains several billion stars and is smaller than the Milky Way in which our Solar System is located. For comparison, our galaxy contains roughly 200 to 400 billion stars. There are many differnt types of dwarf galaxy including dwarf elliptical, dwarf spheroidal, dwarf spiral and dwarf irregular. One of the most important examples of dwarf galaxies is the Small Magellanic Cloud, which is a dwarf irregular satellite of our galaxy.

Related Terms:

See this term in other languages

Term and definition status: This term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".