Glossary term: Galassia irregolare
Description: Una galassia irregolare è un tipo di galassia con poca o nessuna simmetria (ha una morfologia o una forma distorta). Sono tipicamente più piccole delle galassie a spirale ed ellittiche e spesso contengono quantità significative di gas di formazione stellare. La Grande e la Piccola Nube di Magellano sono galassie irregolari, relativamente vicine (circa 160.000 anni luce e 200.000 anni luce) alla nostra Via Lattea, che possono essere osservate dall'emisfero meridionale della Terra ad occhio nudo.
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of 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".
