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Glossarbegriffe: Konjunktion

Description: Aus der Perspektive eines Beobachters auf der Erde spricht man von einer Konjunktion, wenn zwei astronomische Objekte am Himmel scheinbar nahe beieinander zu stehen scheinen. Das heißt: Ihre Himmelskoordinaten unterscheiden sich kaum voneinander.

Die Konjunktion muss nicht tatsächlich sichtbar sein: Mond und Sonne stehen beispielsweise bei Neumond ungefähr auf einer Linie, aber wir können den Mond unter diesen Bedingungen nicht sehen, außer es gibt eine Sonnenfinsternis. In diesem Fall und wenn eine Konjunktion so nahe ist, dass ein Objekt das andere zu verdecken scheint, sprechen Astronomen von einem Transit oder einer Finsternis.

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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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Three bright objects in the sky with one top left, one in the middle and one lower centre.

Jupiter, Venus, Moon Conjunction

Bildunterschriften: Captured with a smartphone in February 2023, over the skies of Luzerne County, Pennsylvania, USA, this photograph offers a glimpse into a conjunction, an enthralling astronomical phenomenon that occurs when two or more celestial objects are seen in close proximity in the sky from our perspective, despite the objects not being physically near to each other. In this image, the brilliance of Jupiter (top), the allure of Venus (middle), and the familiar glow of our Moon (bottom) dance together against a backdrop of delicate clouds and a treeline silhouette, making it a moment worth treasuring.
Bildnachweis: Joslynn Appel/IAU OAE (CC BY 4.0)

License: CC-BY-4.0 Creative Commons Namensnennung 4.0 International (CC BY 4.0) icons