By Kevan Hubbard | 2025-12-09
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Solar Activity
On 12/09/2025 10:06 am by Jim Militello | Tucson, Arizona USA
Hydrogen-alpha image of the Sun with active regions, filaments, and some nice prominence.
Coronado SolarMax90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 20 video frames processed with Autostakkert, Registax, Photoshop.
