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Glossary term: Andromeda Galaxy

Description: The Andromeda galaxy is a spiral galaxy like ours although twice as large. It is the only such galaxy visible to the naked eye from the northern hemisphere, although only from dark places away from city light. It is also known as M31 after the French astronomer Charles Messier, who created a catalogue of 110 objects with Andromeda in position 31.

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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".