Whirlpool Galaxy – M51

Whirlpool Galaxy - M51 by Mark Large, Layer de la Haye, Essex, UK. Equipment: Altair Astro 10

Mark Large

Layer de la Haye

Altair Astro 10″ RCT
Moonlite motor focus
QSI 683wsg-8 with astrodon 2″ filters
Lodestar 2 guide camera in OAG mode
MaximDL observatory control
PixInsight image processing

Image of M51 taken over two nights (22nd and 23rd June 2018). We actually had two clear nights in a row – first time n a long time. This image consists of 10x300s in each of LRG & B, plus the usual calibration images, processed in PixInsight