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Glossary term: Mancha solar

Description: Una mancha solar es una región temporal y fría, provocada por un fuerte campo magnético en la fotosfera del Sol. Las manchas solares son zonas en las que afloran tubos de flujo magnético procedentes de las capas más profundas del Sol. El intenso campo magnético aumenta la presión magnética en estas regiones. Para mantener la misma presión que el entorno, la presión del gas y del plasma en la mancha solar debe disminuir, lo que hace que sea más fría que su entorno. Al ser más frías que la fotosfera circundante, las manchas solares pueden verse a través de un telescopio como manchas oscuras en la superficie del Sol. Las manchas solares varían en tamaño, pueden tener un diámetro que va desde unas decenas de kilómetros hasta más de cien mil kilómetros. Pueden persistir durante periodos de tiempo que van desde unos pocos días hasta varios meses. El número y la ubicación de las manchas solares en el Sol varían a lo largo del ciclo solar. Se cree que otras estrellas también tienen manchas causadas por sus campos magnéticos.

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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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License: CC-BY-4.0 Creative Commons Reconocimiento 4.0 Internacional (CC BY 4.0) icons

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