By Marisa M | 2025-03-01
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trio of sunspots
On 03/01/2025 10:31 am by Patricio Leon | Santiago, Chile
while AR4006 is vanishing, AR4009, left of center, has doubled twice its area in the last day and now exhibits a respectable 2 Earths-size dark core.
Newt 4.5 + solar film, 1/640s ISO100
crop, B/C
