2012 08 14 – NOAA 11543

NOAAs 11543 and 11542 are said to have beta-gamma magnetic fields which have a small chance of producing M-class flares today.

AR 1543 had two obvious sunspots on the leading edge of that region with a long filament trailing behind. Lots of bright plage within the AR and fainter patches further away from the sunspots and filament. There was also a bit of fine filamentary structure swirling around the sunspots and reaching out to the SW, resembling a crackling in the chromosphere.

AR 1542 had plage and a filament, but I didn’t see sunspots in that region. With the heat at 100F and winds, I have to admit I didn’t stray for long from AR 1543 so may have missed any great detail in 1542. There were several bright prominences on the western limb and fainter ones scattered about the entire disk as well as more plage to the eastern hemisphere.

Sketch created at the eyepiece with black Strathmore Artagain paper, white Conte’ pencil and crayon, charcoal pencil and black oil pencil, then hue/saturation added for h-alpha color in Photoshop CS2.

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~ by Erika Rix on August 14, 2012.

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