Positions and identifications for stars in objective-prism surveys and for photometric standards

Computer Science – Databases

Scientific paper

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Scientific paper

Accurate positions and identifications have been obtained for stars appearing in published objective-prism spectral surveys mostly along the galactic plane. The stars are missing from databases because they are usually identified only on charts. The files include GSC/Tycho names and equinox 2000 positions, rough magnitudes, the spectral types, and additional identifications as appropriate. Over a dozen regions comprising some 20,000 stars have been keyed-in thus far, including work done at Case, Crimea, Stockholm, and elsewhere on both blue and infrared plates. Precise positions and IDs for all of Landolt's ~ 1100 standard stars as well as those of Purgathofer and Priser are also complete. The files can be obtained from the author, and will be deposited with data centers.

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