AR 3312: chaotic sunspot chain (Arnie)

Contains: Solar system body or event

AR 3312: chaotic sunspot chain

Acquisition type: Lucky imaging

AR 3312: chaotic sunspot chain

Acquisition type: Lucky imaging

Active region 3112 is the large chain in the middle. AR 3116 is towards upper left.
Details:
C8 at f/10 (2000mm focal length)
Baader Astrosolar full aperture filter
ZWO ASI178MM camera
Video captured in SharpCap, 3 minutes long, 1.135ms exposure, 0 gain, 5666 total frames
Stacked best ten frames in AutoStakkert3, wavelets in AstraImage, de-noise in Topaz, final contrast tweaks in Photoshop

This active region is very close to the edge of the sun's disk, located on the left. Towards the left we are seeing the convection cells edge on, and since the sides are hotter than the tops, where they rise above the surrounding cells we see whiter (hotter) areas (plage). Towards the right, we are seeing the convection cell tops, of a more uniform temperature, resulting in the surface pattern called granulation. The large spot on the right and a couple of the smaller spots in the middle have light bridges crossing the umbra. Lots of small black pores are visible in addition to the larger spots.

Arnie

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Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
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AR 3312: chaotic sunspot chain

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