Publications

For declinations greater than +3 deg, the sequences generally lie near the centers of the original Palomar Observatory-National Geographic Society Sky Atlas. This same six-degree grid (1855 equinox) was used for the Palomar Quick-V survey (epoch 1983) for construction of GSC-I. Three of these northern sequences are shared between pairs of POSS-I fields. For equatorial and southern declinations the sequences are near the centers of the 894 fields in the ESO/SERC Southern Sky Atlas (1950 equinox). After publication of GSPC-I four additional sequences were added for better coverage of the supplemental GSC-I fields N594, N608, N611 and N613 at declination +3 deg.

Most of the southern sequences were observed at the 0.6m and 0.9m telescopes of the Cerro Tololo Inter-American Observatory (CTIO). Most northern (and some southern) data were taken with the 1.0 m and 1.5m telescopes of the University of Arizona Observatories on Mount Lemmon. The 1.2 m automatic telescope of the Cloudcroft Station of Sacramento Peak Observatory was used to observe on 21 nights. In addition to these observations, 83 complete sequences and 64 partial sequences were selected from the astronomical literature.

Return to GSPC I.