By Randy Strauss | 2025-07-09
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promising spot
On 07/10/2025 10:53 am by Patricio Leon | Santiago, Chile
the newcomer AR4136, upper left, is a 3 Earths-size sunspot with beta-gamma magnetic configuration, not very unstable one but still capable of surprises
Newt 4.5"+ solar film, 1/500s ISO100
crop, B/C
