Glossary term: Leo
Description: Le Lion est une constellation du Zodiaque, c'est-à-dire que les étoiles qui la composent se trouvent dans la partie du ciel qui coupe l'écliptique, c'est-à-dire le plan défini par les orbites des planètes de notre système solaire. Ainsi, de notre point de vue, ici sur Terre, nous pouvons régulièrement trouver les planètes, ainsi que le Soleil, dans cette constellation - dans le cas du Soleil, du 11 août au 17 septembre. (Dans le ciel nocturne, c'est au printemps que le Lion est le plus facile à observer. Le Lion est l'une des 88 constellations modernes définies par l'Union astronomique internationale et l'une des 48 constellations classiques nommées par l'astronome Claudius Ptolemy au IIe siècle. La plus brillante des nombreuses étoiles du Lion s'appelle Regulus.
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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".
Related Diagrams
Cancer Constellation Map
Credit: Adapted by the IAU Office of Astronomy for Education from the original by IAU/Sky & Telescope
License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons
Leo Constellation Map
Credit: Adapted by the IAU Office of Astronomy for Education from the original by IAU/Sky & Telescope
License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons
Virgo Constellation Map
Credit: Adapted by the IAU Office of Astronomy for Education from the original by IAU/Sky & Telescope
License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons