By Christian Schulte | 2025-06-07
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Solar Activity
On 06/08/2025 10:55 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun showing AR4105, some filaments, and prominence.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 40 video frames processed with Autostakkert, Registax, Photoshop.
