Target
M 101 — The Pinwheel Galaxy
Frame / Rev
002 / A
Integration
5h 40m
Catalog
M 101
Class
Galaxy
Constellation
Ursa Major
Distance
21,000,000 ly
Coordinates
RA 14h 03m 12s · Dec +54° 20′56″
Palette
RGB
Sessions
3 nights · Apr 2025
Sky
Bortle 9
Target & processing
This image was acquired with my Sony a7II at that time (probably the worst camera for astrophoto) with subs of 30s to avoid the 'star eater' issue with the Sony camera. I see a lot of problems in this image, but I decided to post it to remind me of the long way I did since then.
Note to self
Maybe I'll retry this target with better equipment and processing skills one day.
Per-filter integration
No filter data recorded.
Equipment
Optics
William Optics RedCat 51 · 250mm f/4.9
Camera
Sony a7II · Full Frame · 5.97µm / px
Mount
ZWO AM3 harmonic, no counterweight
Control
Laptop HP · NINA + PHD2
Site
Montréal, QC · Bortle 9 · 45.5° N
Adjacent frames
