By Cecille Kennedy | 2023-12-16
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On 12/17/2023 11:30 am by Jim Militello| Tucson, Arizona USA
This hydrogen alpha image shows sunspot and active region 3519.
Coronado SolarMax90 Ha telescope, ZWO ASI178mm video camera.
The image is a stack of 800 video frames using Autostakkert, Registax Wavelets, Photoshop.
