M51 - Whirlpool Galaxy - LRGB - 2019-04

This image was a bit of an experiment, taken through a 1980's Orange Tube Celestron 8 to practice at longer focal-lengths during a backyard sessions over a couple of clear nights in Seattle, WA.

 

Mount: Astro-Physics Mach 1 GTO

Telescope: Celestron C8 @ f/10

Camera: QSI 683wsg

Luminance Integration: 84 x 30 sec (42 min), Binned 2x2

RGB Integration: 20 x 60 sec (20 min), Binned 4x4

Done