× Sunspot region 3429 Date 2023.09.15 Filters 540nm continuum filter and ND1.8 filter Taken by Rainer Additional information Equipment: 130mm f/7 apo, Baader Herschel wedge, Baader FFC Barlow at 3.5X, ZWO ASI 178MM-mini camera. The data is extracted from 12 videos of one minutes each, taken over a period of 45 minutes. Back to Solar System Back to gallery