By Paolo Bardelli | 2025-07-24
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Solar Activity
On 07/24/2025 09:57 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun showing numerous active regions, lots of filaments, and some prominence.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 20 video frames processed with Autostakkert, Registax, Photoshop.
