This collection consists of photographs
from the National Geographic Society – Palomar Observatory Sky Survey (NGS-POSS). From 1948
to 1958 astronomers at the California Institute of Technology's Palomar Observatory used a
48-inch Schmidt Telescope to create this sky survey, at the time the most advanced sky
survey ever. The survey detected objects of a magnitude of +22, one million times fainter
than the limits of human vision. The NGS-POSS collection of photographic negative prints was
published multiple times through the 1950s-1970s and scanned into the Digitized Sky Survey
in the 1990s. The collection includes a set of prints measuring 14x17" from the photograph
atlas, as well as a written survey guide and catalog of plates.
8 Linear Feet
Property rights reside with the University of California. Copyrights are retained by the
creators of the records and their heirs. For permission to reproduce or to publish, please
contact the Head of Special Collections and Archives.
The collection has not been processed. It may contain restricted materials. Please contact
the Department of Special Collections and Archives in advance to request access.