Description

Area around NGC 3851 (this time at f9) for framing guidance.

This is five images of 400s taken through AT6RC at prime on STF8300C at -25°C on sensor then stacked and double trimmed in histogram using pixinsight. Pic isn't made to be pretty, is made to be informative.

This is a very dense grouping of galaxies that is within the reach of a 4" Apo or 6" reflector using DSLR or more advanced equipment.