Friday, Oct 3, 2025
The Sun in H-Alpha on September 19th 2025
By Alessandro Carrozzi
Amazing solar activity with prominences, filaments, and active regions (AR 4217, 4223, 4225).
ZWO ASI 174MM
Daystar Quark Cromosphere
ZWO AM5N
William Optics Megrez 90
Autostakkert, ImPPG, Pixinsight, Photoshop