By Chantal Torchia | 2022-05-22
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![Community photo entitled by Randall Kayfes on 05/21/2022 at Tucson, Arizona, USA](https://earthsky.org/upl/gravity_forms/6-d184048789a60d766a02a8e43117298b/2022/05/20220522-144801-Reg-Sun-20220521.jpg)
On 05/21/2022 10:08 am by Randall Kayfes| Tucson, Arizona, USA
Daily images of this fantastic sunspot were taken using my Coronado Hydrogen-Alpha filtered solar telescope
Coronado PST (40MM f/10, Hydrogen-alpha, 1 angstrom), ZWO ASI 290 MM, ZWO 139 stacked frames AVI
Autostakkert stacking, Registax sharpening, DarkTable final post processing