By EGIDIO VERGANI | 2025-04-24
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Solar Activity
On 06/05/2025 09:57 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun showing AR 4105 coming into view on the east side while AR 4099 & 4100 make their way to the west limb. Also 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.