By Randy Strauss | 2024-12-19
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swarm sunspot
On 12/19/2024 09:55 am by Patricio Leon| Santiago, Chile
newcomer sunspot 3927, at left, is an extended cluster of minor dark cores close to the equatorial zone, could be a leading farside active region as described in the sun section
Newt 4.5" + solar film, 640s ISO100
crop, B/C