By Cecille Kennedy | 2025-11-10
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Solar Activity
On 11/11/2025 10:22 am by Jim Militello | Tucson, Arizona USA
Hydrogen-alpha image of the Sun showing sunspot active regions 4274, 4275, and 4277.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 20 video frames processed with Autostakkert, Registax, Photoshop.
