The Guide Star Catalog, Version 2.3.2 (GSC2.3) Virtual Observatory Resource

Authors
  1. Lasker B.
  2. Lattanzi M.G.
  3. McLean B.J.
  4. et al.
  5. 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 GSC2.3 has no magnitude limit. The parameters of the bright objects, overexposed on the Schmidt plates, are taken from the Tycho-2 (I/259) catalog. The computed proper motions are not yet publically available because of 10mas/year systematic errors discovered for the southern hemisphere that are still under investigation.

Keywords
  1. surveys
  2. astrometry
  3. photographic-magnitude
  4. galaxy-classification-systems
Bibliographic source Bibcode
2008AJ....136..735L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/I/305
IVOA Identifier IVOID
ivo://CDS.VizieR/I/305

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/305
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/305
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/305
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/305/out?
https://vizier.iucaa.in/viz-bin/conesearch/I/305/out?
http://vizieridia.saao.ac.za/viz-bin/conesearch/I/305/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/305.

History

2007-05-04T12:30:58Z
Resource record created
2007-05-04T12:30:58Z
Created
2018-01-19T11:54:40Z
Updated

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