By juan manuel pérez rayego | 2026-02-19
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Solar Activity
On 02/27/2026 11:33 am by Jim Militello | Tucson, Arizona USA
Hydrogen-alpha image of the Sun showing active regions, prominence, and filaments.
Coronado SolarMax 90 Ha solar telescope, ZWOASI183mm video camera.
The image is a stack of 30 video frames processed with Autostakkert, Registax, Photoshop.
