By Aayan Shaikh | 2025-12-25
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sisters
On 12/25/2025 09:47 am by Patricio Leon | Santiago, Chile
Fast growing sunspot AR4321 has a delta component wich could bring some action in the solar face; both big sunspots, 4317 and 4321, are detectable with protected eye alone
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
