Cederblad 51 consists of the two blue reflection nebulae surrounded by the red emission nebula GN 05.30.0. These are located in Orion.
Luminance – 6x600s – 60 minutes – binned 1x1
RGB – 3:2:1x600s – 30:20:10 minutes each – binned 1x1
120 minutes total exposure – 2 hours
Imaged over five nights in January and February, 2022 at the El Sauce Observatory (Rio Hurtado, Chile) with a FLI PL 16803 on an ASA 500N at f/3.8 1900mm.
LRGB - https://www.flickr.com/photos/dcrowson/52800505376/sizes/l/
This data is from Telescope Live (https://telescope.live/) “One-click Observations.”