The world's biggest star catalogue

Details The world's biggest star catalogue The world's biggest star catalogue

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989s%26t....78..583v&link_type=abstract

Sky and Telescope (ISSN 0037-6604), vol. 78, Dec. 1989, p. 583-589.

Physics

Astronomical Catalogs, Hubble Space Telescope, Stellar Physics, Magnetic Disks, Microdensitometers, Read-Only Memory Devices

Scientific paper

The Hubble Space Telescope (HST) Guide Star Catalog (GSC), an enormous inventory of the sky, is introduced as the product of eight years of intensive effort by astronomers, computer programmers, and analysts at the Space Telescope Science Institute. For every star in the SAO Catalog the GSC has 60, thus containing almost 19 million entries. The GSC is organized into 9,537 regions, each with a few thousand objects. Each object carries a 10-digit identification number. The first five digits encode the catalog region, and the last five specify the star number within the region. Additional data in the catalog include each object's celestial coordinates, brightness in magnitudes, and classification (stellar or nonstellar).

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