An extension of Barnard's 1919 Astrophysical Journal paper "On the Dark Markings of the Sky, with a Catalogue of 182 Such Objects," the deep-sky atlas features reprints of the plates taken by Barnard with the 10-inch Bruce Photographic Telescope
while in residence at Mount Wilson.
Each photographic telescope
was to have a guide telescope with an aperture of 10 inches (25.
Never a slave to false modesty, he described it as "the most complete and refined and powerful photographic telescope
For this he secured a grant from reclusive New York City heiress and astronomy patron Catherine Wolfe Bruce to purchase a 10-inch photographic telescope
In late 1882, Massachusetts astronomer David Peck Todd traveled to California to photograph the transit of Venus from the summit of Mount Hamilton, where a solar photographic telescope
made by the renowned optical firm Alvan Clark & Sons waited among the stacks of bricks and timbers from which Lick Observatory was rising.
The philanthropist Catherine Bruce had donated $7,000 for a photographic telescope
All of today's large photographic telescopes
, for example, are patterned on the coma-free design worked out by Bernhard Schmidt at Hamburg Observatory in 1930.