By Cynthia Trosin | 2024-09-16
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Solar Activity
On 09/17/2024 12:45 pm 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.