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The Sun: Amazing Filament

sun filaments magnetic fields solar dynamics observatory nasa

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#1    Waspie_Dwarf

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Posted 08 August 2014 - 12:22 AM


Amazing Filament

The Sun sported a very long filament (over 30 times the size of Earth) that angled diagonally across its surface for over a week (July 31 - Aug. 6, 2014). Filaments are clouds of cooler gas suspended above the Sun's surface by magnetic forces. They are notoriously unstable and often break apart in just hours or days. So far, this one has held together as it rotated along with the Sun for over a week. The images were taken in the 193 Angstrom wavelength of extreme ultraviolet light and were tinted red instead of its usual brown hue.

Credit: Solar Dynamics Observatory/NASA.

Source: NASA/SDO - Pick of the week

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