By Hassan Dadashi Arani | 2024-10-29
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renewing interest
On 10/30/2024 09:55 am by Patricio Leon | Santiago, Chile
many sunspot groups, the 3 more conspicuous are big enough to be seen with protected eye alone (always a striking view); the isolated AR3879 spot, close to left limb, is the biggest one, with a span of 4 Earth diameters
Newt 4.5" + solar film, 1/500s ISO100
crop, B/C