By Julia Vaughan | 2025-03-15
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populated sun
On 03/16/2025 10:19 am by Patricio Leon | Santiago, Chile
the big dark core of AR4021 has taken a central position in the sun disk, all other nuclei are smaller and mostly concentrated in the northern hemisphere
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
