astronomyblog: AR9077: Solar Magnetic Arcad…

astronomyblog:

AR9077: Solar Magnetic Arcade

On July 14th, solar active region 9077 (AR9077) produced a massive flare. The event also blasted an enormous cloud of energetic charged particles toward planet Earth, triggering magnetic storms and dramatic auroral displays. This striking close-up of AR9077 was made by the orbiting TRACE satellite shortly after the flare erupted. It shows million degree hot solar plasma cooling down while suspended in an arcade of magnetic loops. 

Credit: TRACE, Stanford-Lockheed ISR, NASA