Glossary term: Satellite artificiel
Description: Un satellite artificiel est un dispositif fabriqué par l'homme qui est envoyé dans l'espace, en orbite autour de la Terre ou d'autres objets du système solaire, où la gravité le maintient en orbite. Les satellites artificiels peuvent être construits pour effectuer diverses tâches, notamment prendre des photographies aériennes de la Terre qui aident les météorologues à prévoir le temps, ou prendre des photos de corps astronomiques et de galaxies lointaines, ce qui aide les scientifiques à mieux comprendre le système cosmique. Les satellites artificiels sont également utilisés pour les communications à travers le monde et pour déterminer la position d'une personne, par exemple avec le système de positionnement global (GPS). Le premier satellite artificiel a été lancé dans l'espace en 1957 par l'Union soviétique, sous le nom de Spoutnik 1.
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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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Credit: Torsten Hansen/IAU OAE
License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons
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