Description: - Messier 101, aka NGC 5457. A Spiral Galaxy in Ursa Major

Camera: ASI533MM

Filter: Chroma L

Scope: Astro-Physics AP130EDT, 1085mm at f/8.35

Guiding: ASI 220 on OAG

Exposure: 51 minutes total of 17 x 3 minutes Luminance only

Location: Home in Calgary, Alberta under Bortle 8 skies

Date: 2025-04-24

Notes: This is one of my QAD (Quick And Dirty) shots, imaging from my backyard in the city. I ran into problems with the set taken this night with large dust blobs that didn’t remove with the flats taken. This forced heavy cropping of the image to get this QAD result. Processed in PixInsight with BlurXT and NoiseXT.