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Jon Greif

Location of Photo:

Alpine, CA, USA

Date/Time of photo:

June 4, 2024, at 4:30 pm PDT


Lunt 50 mm Pressure Tuned Ha scope, ZWO ASI-174 MM camera, ASICAP capture software and Pixinsight post-processing.


Sunspot region AR3697, in the lower central portion of this image – famous for firing the largest X flare of Solar Cycle 25 so far and for helping to cause the global geomagnetic storms on May 10 (when it was AR3664 -- Sunspot areas that complete a trip around the Sun get a new designation when they reappear on the Earth facing surface) – is not done yet! It’s still holding on to its high-potential beta-gamma-delta magnetic configuration, and fired two M flares over the past 24 hours. Lots of flare activity along the periphery in this image, as well. Image was shot yesterday afternoon through a layer of haze and clouds and is a stack of the best frames of a 10-second video.