2021-12-15, 03:34 AM
The deepest stellar I've ever reached with my refigured 13" is 15.3 from Bortle 1 skies a long time ago in a galaxy far, far away. From my driveway, typically, I reach 13.5 or 14 on an exceptional night (Bortle 4). This is from many years of experience. My typical high magnification is ~25x/inch with this refigured mirror.