By Hassan Dadashi Arani | 2025-07-13
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Solar Activity
On 07/13/2025 10:09 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun showing some beautiful prominence, active regions with sunspots, and filaments.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 20 video frames processed with Autostakkert, Registax, Photoshop.
