By Breanne Mueller | 2024-01-31
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On 01/31/2024 09:38 am by Patricio Leon| Santiago, Chile
close to 10 o'clock limb AR3567 shows complex dark cores; just rotating the 8 o'clock limb appears an isolated newcomer which exhibits at full resolution image a real Wilson effect (asimetry of penumbra due to apparent displacement of the umbra away from the limb)
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C