The above image, centered on B 72, the Snake Nebula,  covers part of the region seen in Plate 21 of Barnard's "A Photographic Atlas of Selected Regions
of the Milky Way." Image taken with a Tak FSQ and STL11000 Camera. To better simulate the conditions used by Barnard, the image was acquired without
any filter (not even luminance, UV or IR cutoff). 120 minutes total exposure. Faint color added to the monochrome image in processing.

Mouseover for some labels. There are far too many objects here to label all. See below for a link to Barnard's  Atlas, Plate 21 with full annotation. Note that
in this image North is right while in Barnard's Atlas North is up.
"Region of Theta Ophiuchi and Eastwards"