By Victoria Bryhan | 2025-05-22
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Solar Activity
On 05/22/2025 10:24 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun showing off some really nice prominence along with sunspot regions 4092, 4090, & 4087 and some filaments. AR 4087 getting ready to turn the corner on the west side.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 40 video frames processed with Autostakkert, Registax, Photoshop.
