NGC 253, Summer 2025

This is 26 hrs 40 min of LRGB data from Starbase's AFIL-40, 16" f/9.3 RC Optics, from Chile.  I've always wanted a nice color image of NGC 253, and I enjoyed working with this data. The L for this image is 85x600s, and the RGB is about equal numbers of 600s subs.  That much data on a target this bright made all the choices interesting but not terribly difficult.