By Eliot Herman | 2025-01-19
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Solar Activity
On 01/19/2025 11:58 am by Jim Militello | Tucson, Arizona USA
This hydrogen alpha image of the Sun is showing sunspots, active regions, 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.
