Sunspots
Taken by John W. O'Neal, II on August 22, 2015 @
Amherst, Ohio, USA
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Here's an overview and a closeup of NOAA AR 2403 shot August 22nd, 2015.
Lunt engineering 102 mm ED Doublet (714mm, f/7.0) with Lunt LS12CaKMDs2 Calcium-K module in straight extension tube.
Shot with a ZWOASI174MM CMOS Imager, all mounted inside a SKYSHED POD Observatory on a Losmandy G-11.
AR AR2403 continues to grow. It has more than quadrupled in area since Friday and now stretches across an expanse of the sun's surface more than 130,000 km wide. Of greater significance, it has a "beta-gamma-delta" magnetic field that harbors energy for powerful X-class solar flares.
AR2304 is now crackling with M-class solar flares--four in the past 24 hours alone. This is causing a series of minor radio blackouts at frequencies mainly below 5 to 10 MHz. NOAA forecasters estimate a 35% chance of more M-class solar flares and a 10% chance of X-flares in the next 24 hours.
Photographer's website:
http://https://www.facebook.com/groups/solaractivity/
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