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Friday Night Light - M9.3 Class Flare
An active region observed in extreme ultraviolet light burst out with a short-lived M9.3 flare that originated from sunspot 1261 and began at about 10:02 p.m. EDT and ended around 10:12 p.m. EDT on July 29, 2011.
Because the location of the eruption and its sunspot at that time, the associated high-energy particles went wide of Earth and had little terrestrial effects. The region that unleashed the flare has now rotated to be facing Earth and possesses the kind of magnetic field characteristics that could produce more solar storms. NASA's Solar Dynamics Observatory will continue to keep an ever-watching eye on the Sun for more eruptive events.
What is a solar flare?
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This video taken by SDO in extreme ultraviolet light shows the M9.3-class solar flare generated by sunspot 1261 on July 29, 2011. The black diagonal line in the upper right is part of a coronal hole. Credit: NASA/SDO/AIA
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NASA's Goddard Space Flight Center