By Mac Campbell | 2025-06-18
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Solar Activity
On 06/19/2025 10:04 am by Jim Militello | Tucson, Arizona USA
Hydrogen alpha image of the Sun still featuring AR4114 with AR4117 coming into view. Also some real nice prominence and filaments.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.
The image is a stack of 50 video frames processed with Autostakkert, Registax, Photoshop.
