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Affichage des articles dont le libellé est Science & Technology - Astronomy picture of the day : A Solar Prominence Eruption from SDO. Afficher tous les articles
Affichage des articles dont le libellé est Science & Technology - Astronomy picture of the day : A Solar Prominence Eruption from SDO. Afficher tous les articles

29/05/2019

Science & Technology - Astronomy picture of the day : A Solar Prominence Eruption from SDO

2019 May 26
A Solar Prominence Eruption from SDO 
Image Credit & Copyright: NASA/Goddard/SDO AIA Team
Explanation: One of the most spectacular solar sights is an erupting prominence. In 2011, NASA's Sun-orbiting Solar Dynamic Observatory spacecraft imaged an impressively large prominence erupting from the surface. The dramatic explosion was captured in ultraviolet light in the featured time lapse video covering 90 minutes, where a new frame was taken every 24 seconds. The scale of the prominence is huge -- the entire Earth would easily fit under the flowingcurtain of hot gas. A solar prominence is channeled and sometimes held above the Sun's surface by the Sun's magnetic field. A quiescent prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME)expelling hot gas into the Solar System. The energy mechanism that creates a solar prominence is still a topic of research. After our Sun passes the current Solar Minimumsolar activity like eruptive prominences are expected to become more common over the next few years.

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