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Affichage des articles dont le libellé est Astronomy picture of the day - 2018 June 18 - An Active Prominence on the Sun. Afficher tous les articles
Affichage des articles dont le libellé est Astronomy picture of the day - 2018 June 18 - An Active Prominence on the Sun. Afficher tous les articles

18/06/2018

An Active Prominence on the Sun - Astronomy picture of the day - 2018 June 18

An Active Prominence on the Sun 
Video Credit: Chuck Ayoub (Chuck's Astrophotography)
Explanation: Sometimes the Sun's surface becomes a whirlwind of activity. Pictured is a time-lapse video of the Sun's surface taken over a two hour period in early May, run both forwards and backwards. The Sun's surface was blocked out so that details over the edge could be imaged in greater detail. Hot plasma is seen swirling over the solar limb in an ongoing battle between changing magnetic fields and constant gravity. The featured prominence rises about one Earth-diameter over the Sun's surface. Energetic events like this are becoming less common as the Sun nears a minimum in its 11-year activity cycle.

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