Glossary term: Bélier
Description: Le Bélier est la plus petite constellation du Zodiaque. Les étoiles qui composent cette constellation se trouvent dans une zone du ciel traversée par l'écliptique (le plan défini par l'orbite de la Terre autour du Soleil). Ainsi, depuis la Terre, on trouve régulièrement les planètes, mais aussi le Soleil, dans la constellation du Bélier. Dans le cas du Soleil, cela se produit de la mi-avril à la mi-mai (à ce moment-là, bien sûr, nous ne pouvons pas voir les étoiles de la constellation). Le Bélier est l'une des 88 constellations modernes définies par l'Union astronomique internationale, mais son origine est bien plus ancienne : elle faisait déjà partie des 48 constellations nommées par l'astronome Claude Ptolémée au IIe siècle.
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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".
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