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Community photo entitled Solar Activity by Jim Militello on 01/15/2026 at Tucson, Arizona

Solar Activity

On 01/15/2026 10:40 am by Jim Militello | Tucson, Arizona

Hydrogen-alpha image of the Sun with active region 4341 with some large sunspots coming into view from the east and 4336 on the west.

Coronado SolarMax 90 Ha solar telescope, ZWO ASI183mm video camera.

The image is a stack of 30 video frames processed with Autostakkert, Registax, Photoshop.