Sunday, October 21, 2012

2012-10-21 Class M9.0 Flare. Active Region keeps on giving more M flares...

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On Oct. 20th at 1814 UT, Earth-orbiting satellites detected a strong M9-class solar flare. The source was a new sunspot, AR1598, emerging over the sun's southeastern limb. NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash (image), which sent waves of ionization rippling through Earth's upper atmosphere. More flares are in the offing. NOAA forecasters estimate a 40% chance of M-flares and a 10% chance of X-flares during the next 24 hours.
10 active regions on the disk today.
A new sunspot region coming over the southeast limb 11598 poses a threat for M- and X-class solar flares.Region 11596 still has a Beta-Gamma magnetic complexity and continues to be a threat for geoeffective flares.
ORIONID METEOR UPDATE: The Orionid meteor shower is underway as Earth passes through a stream of debris from Halley's Comet. International meteor counts suggest a broad peak of about 25 meteors per hour centered on Oct. 21st. If the trend holds, sky watchers can expect to see a dozen or so Orionids flitting across the sky every hour after midnight on Oct. 21-22. Got clouds? Try listening for Orionid 'pings' on the realtime meteor radar.

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