van den Bergh 83 is the blue reflection nebula around several stars at on the right side of the image.
van den Bergh 84 is the smaller blue reflection nebula around the star below vdB 83.
These are located approximately 3 degrees below Sharpless 304 in Canis Major.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged January 30th, 2017 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/33315637581/sizes/l