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Paper: The Automated Plate Scanner On-Line Database of POSS I
Volume: 61, Astronomical Data Analysis Software and Systems III
Page: 219
Authors: Aldering, G.; Humphreys, R. M.; Odewahn, S.; Thurmes, P.
Abstract: We present details of our database constructed from POSS I plates digitized by the Automated Plate Scanner (APS) at the University of Minnesota. Both POSS I E and O plates covering those fields with |b| > 20 degrees (644 fields) have now been digitized. We have written a custom database engine, STARBASE , which is used to construct databases from reduced scan data. It can then be used to query the resulting databases. The astronomical community will have access to STARBASE , and hence to all fully reduced POSS I scan data. This access is being provided via the Astrophysical Data System (ADS) interface. Direct Internet use of STARBASE and its companion graphics X-window display package, STARPLOT , will also be provided in the near future. The release of plate databases will be incremental and is expected to take 1 - 2 yrs to complete. By the time of this conference we will be offering a fully calibrated test database covering 9 fields at the NGP through ADS. The test NGP database alone contains positions, magnitudes, colors, star and galaxy classification, and numerous other parameters for ~2 X 10**5 stars and ~10**5 galaxies. We also discuss our plans to digitize plates from the ``Luyten Red'' and POSS II surveys, and to provide network access to the digitized object rasters which have resulted from scanning POSS I.
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