By Mario Rana | 2026-03-21
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replacements
On 03/21/2026 10:11 am by Patricio Leon | Santiago, Chile
A newcomer at the 8 o'clock limb, AR4399, has rotated into view and prepares to take the place AR4392 will leave when it exits the solar face. Minor auroral activity past yesterday CME arrival and geomagnetic storm; flare activity doesn´t get over B-class level.
Newt 4.5" + solar film, 1/640s ISO100
crop, b/c
