By PAOLO PALMA | 2025-03-03
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quiet sun
On 03/05/2025 10:20 am by Patricio Leon | Santiago, Chile
the big dark core of AR4012 has a 3x2 Earths size, so falls within reach of unaided protected eye; an unnamed newcomer has just rotated the 8 o'clock limb
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
