By Steven Bellavia | 2025-04-28
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fanfare entrance
On 04/29/2025 10:58 am by Patricio Leon | Santiago, Chile
huge AR4079 exhibits its 5 Earths size and a pair of dark "eyes" as it enters the sun face; if it is old sunspot AR4055 reappearing, then is quite probable it will complete a full Sun rotation, a feat only some 3 spots in a thousand can achieve (btw, very happy that B/W SDO sun images are back).
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C