Thursday, Oct 30, 2025

Ring Prominence

By Alessandro Carrozzi

The Sun in H-Alpha, captured on the morning of Saturday, October 11th, 2025. On the eastern limb, a large ring-shaped prominence was visible, spanning several Earth diameters.

Camera

ZWO ASI 174MM

Filters

Daystar Quark Cromosphere

Mount

ZWO AM5N

OTA

William Optics Megrez 90

Software

Autostakkert, ImPPG, Pixinsight, Photoshop