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Large Sunspot Groups 10484 and 10486
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Large Sunspot Groups 10484 and 10486
Credit & Copyright: Juan Carlos Casado
Explanation: Two unusually large sunspot groups are now crossing the face of the Sun. Each group, roughly the size of Jupiter, is unusual not only for its size but because it is appearing over three years after solar maximum, the peak of solar surface activity. Sunspot group 10484 appears near the image center, while sunspot group 10486 is just coming over the left limb of the Sun. The active region associated with Sunspot 484 (the shorter nickname) has already jettisoned a large coronal mass ejection (CME) of particles out into the Solar System. When striking Earth, radiation of this sort has the power to interrupt normal satellite operations while simultaneously providing beautiful auroras. Rotating with the Sun, sunspots 484 and 486 will take about 30 days to make one complete circle, slowly evolving in size and shape during this time. After using extreme care never to look directly at the Sun, the above image was created by holding a digital camera up to a small telescope.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Русский текст
Based on Astronomy Picture Of the Day
Публикации с ключевыми словами: sunspot - active Sun - Солнце - Солнечная активность
Публикации со словами: sunspot - active Sun - Солнце - Солнечная активность
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