The Guide Star Catalog, Version 2.2 (GSC2.2) Virtual Observatory Resource

Authors
  1. STScI
  2. Published by
    CDS
Abstract

The GSC II is an all-sky catalog based on 1" resolution scans of the photographic Sky Survey plates, at two epochs and three bandpasses, from the Palomar and UK Schmidt telescopes (DSS). Positions, magnitudes, and classifications are produced for all objects on each plate. The objects are then loaded into the COMPASS database, where multiple observations of the same object are matched and assigned a unique name. The GSC2.2 is a preliminary version of GSC II generated to support telescope operations at the GEMINI and VLT telescopes. The magnitude limits are 18.5 in photographic F (red) or 19.5 in photographic J (blue) or V. The parameters of the bright objects, overexposed on the Schmidt plates, are taken from the Tycho-2 (I/259) catalog. The final version (GSC 2.3), expected to be released in 2002, will also contain proper motions.

Keywords
  1. surveys
  2. astrometry
  3. photographic-magnitude
  4. galaxy-classification-systems
Bibliographic source
Space Telescope Science Institute (STScI) and
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/I/271
IVOA Identifier IVOID
ivo://CDS.VizieR/I/271

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/271
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/271
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/271
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/I/271/out?
https://vizier.iucaa.in/viz-bin/conesearch/I/271/out?
http://vizieridia.saao.ac.za/viz-bin/conesearch/I/271/out?
Unknown endpoint
Capability for unknown standard ivo://ivoa.net/std/hips#hips-1.0. The VO Registry may have more details; look for IVOID ivo://CDS.VizieR/I/271.

History

2001-12-13T06:36:19Z
Resource record created
2001-12-13T05:36:28Z
Updated
2001-12-13T06:36:19Z
Created

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr