CG 4

CG 4 (Sandqvist 103, FEST 2-30, [DB2002b] G259.43-12.72 and others) is the cometary globule and associated dust located in Puppis.

ESO 257-19 (PGC 21338 and others) is the galaxy being ‘eaten’ by CG 4.

Ha – 8x600s – 80 minutes – binned 1x1
Luminance – 8x300s – 40 minutes – binned 1x1
RGB – 6x300s – 30 minutes each – binned 1x1

150 minutes total exposure – 2 hours 30 minutes

Imaged on November 21st and 22nd, 2022 at the El Sauce Observatory – Telescope.Live (Rio Hurtado, Chile) with a FLI PL 16803 on an ASA 500N at f/3.8 1900mm.

HaLRGB - https://www.flickr.com/photos/dcrowson/54322108392/sizes/l/