By Prem Choudhary | 2025-11-28
Order by: Trending (past 30 days)Date
Solar Activity
On 12/05/2025 11:52 am by Jim Militello | Tucson, Arizona USA
Hydrogen-alpha image of the Sun with sunspot active regions, prominence and filaments.
Coronado SolarMax 90 Ha solar telescope, ZWO ASI183 mm video camera.
The image is a stack of 20 video frames processed with Autostakkert, Registax, Photoshop.
