Celestron C11 SC, CGEM mount, barlow 3X, ADC, ADC, IR Pro 742 and UVenus filter, ZWO ASI 174 MC 14/01/2025 17:37 UT. Castellet i La Gornal (Valldemar) - Barcelona - SPAIN
Was collimation of the C11 checked before the imaging session, especially important with a 3X Barlow and high magnification?
