Glossary term: Rotación
Description: La rotación es el movimiento de un objeto alrededor de una línea imaginaria, denominada eje de rotación. A medida que el objeto gira, cada una de sus partes mantiene exactamente la misma distancia con respecto al eje de rotación. En general, las estrellas (incluido el Sol), los planetas, las lunas o los asteroides giran alrededor de un eje fijo. La Tierra gira alrededor de su propio eje, que es la línea recta imaginaria que pasa por los polos Norte y Sur de la Tierra. La rotación de la Tierra es la responsable de la vista cambiante del cielo nocturno que ve cualquier observador situado en la superficie terrestre, con nuevas estrellas que surgen continuamente por el horizonte oriental y se ponen por el horizonte occidental. El hecho de que el Sol parezca moverse por el cielo durante el día, saliendo por el este y poniéndose por el oeste, es también una consecuencia de la rotación de la Tierra.
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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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Big Dipper and Comet Neowise C2020 F3
Caption: Honorable mention in the 2023 IAU OAE Astrophotography Contest, category of Time-lapses of rotation of Big Dipper or Southern Cross.
This time-lapse documents the trajectory of the iconic Big Dipper across three frames taken in July 2020. Captured from three locations in Italy, Tre Cime di Lavaredo Auronzo di Cadore, Monte Rite, Cibiana di Cadore, and Casera Razzo, Vigo di Cadore, this visual odyssey showcases the captivating journey of the Big Dipper with the addition of trails of stars painting a celestial canvas. It not only traces the path of this renowned asterism but also features the rare appearance of comet Neowise C/2020 F3, an extraordinary event that graced our skies during July 2020.
Credit: Giorgia Hofer/IAU OAE (CC BY 4.0)
License: CC-BY-4.0 Creative Commons Reconocimiento 4.0 Internacional (CC BY 4.0) icons
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