LUNAR ORBITER IV
CRATER COPERNICUS AND TIMOCHARIS IN THE MARE IMBRIUM, TAKEN BETWEEN 11-26 MAY, 1967.
Vintage NASA Langley Research Center telephoto panorama, made up of three silver gelatin contact prints, each 17 x 22 1/4 inches, of Lunar Orbiter images IV-121H1-3.
Crater Copernicus, named after 16th century astronomer Nicolaus Copernicus, is located within the Mare Imbrium, in Oceanus Procellarum on the western edge of the nearside of the moon.
Lunar Orbiter IV flew in high altitude polar orbits with the primary objective of mapping the near side of the Moon in high resolution, with 100% of the nearside being photographed, and 95% of the farside. A 40 by 45 foot mosaic was created at NASA's Langley Research Center using the images taken by the Lunar Orbiter IV, and visitors were allowed to stand or crawl over it. The mosaic was used to determine the sites to be photographed in higher resolution by the Lunar Orbiter V.
See Bowker & Hughes, Lunar Orbiter Photographic Atlas of the Moon; Cortwright, Exploring Space with a Camera, pp 108-113