This pair of
Astrobin Debut Objects are 2 faint unassuming vdB reflection nebulae located about 2700 light years away in the constellation of Canis Major at a declination of -27 degrees. Each nebula spans about 2 arc-minutes in our apparent view, which corresponds to a width of 2 light years.
vdB 83 surrounds the 10.0 magnitude source star TYC 6516-2583-1. vdB 83 is unusual is that a galaxy, ESO 490-22, is located just to the upper right of the triple star system, behind the smallest star. This galaxy is about 660 million light years away. If it is as big as our Milky Way, its apparent size would be about as big as the white glow that seems to stand out from the background.
vdB 84 surrounds the brighter 9.2 magnitude source star CD 27 3180.
I usually am excited to image multiple catalogue objects in the same frame, but this one won't make the front page of my calendar.
Sidney van den Bergh published his vdB catalog of reflection nebulae in 1966. It was later expanded by one for a total of 159. The collection encompassed all reflection nebulosity visible on the Palomar Sky Survey north of -33 degrees latitude. My Astrobin vdB Collection, which is about 85% complete, is
here.
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