By Mario Rana | 2025-07-12
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complex sun
On 07/12/2025 12:13 pm by Patricio Leon | Santiago, Chile
sun evolving quickly, AR4138 and 4139 have grown fast since yesterday and newcomer AR4140 came to view at 8 o'clock limb anonouncing its entrance with two M flares as told in the sun section; AR4136 in turn doubled its dark core nuclei and it looks now as a mitotic cell
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
