Plate Centers, Epochs Lick/Mt. John Sky Survey

The "Lick Observatory Sky Atlas" (Lick Observatory, 1965) is a set of plates for 166 fields of 18 by 18 degrees, covering the sky from the north pole down to -30 degrees of declination. "The Mount John University Observatory Photographic Sky Survey" (Doughty et al., 1972) covers 142 similar fields from -15 degrees of declination down to the south pole. In the region of overlap, the fields are the same for the two surveys.

Fields 1-46 of the Mount John survey cover the part of the sky (-45 degrees of declination to the south pole) not in the Lick survey; in a special limited edition published in 1972, this part is called the "Canterbury Sky Atlas" (Australia). The overlap between fields is 3 degrees. The plate scale is approximately 232 arc seconds per millimeter.