The VizieR Catalogue Service

The basic VizieR search at
Strasbourg Astronomical Observatory
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e.g. UCAC2,2MASS
or   Jaschek
e.g. CH Cyg
or   19 24 33.1 +50 14 29
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Description - Browsing modes - Large catalogues & Surveys - VO compatibility - VizieR mirrors - Help/Documentations - Notes

Description

VizieR provides access to the most complete library of published astronomical catalogues and data tables available on line (12254 catalogues), organized in a self-documented database. Query tools allow the user to select relevant data tables and to extract and format records matching given criteria. Specific care has been taken for optimizing access to some very large catalogues such as UCAC2, the USNO-B1, or the 2MASS last release.

VizieR is a joint effort of CDS (Centre de Données astronomiques de Strasbourg) and ESA-ESRIN (Information Systems Division). VizieR has been available since 1996, and was described in a paper published in A&AS 143, 23 (2000). Note that VizieR does not contain all available online catalogues; some catalogues are not suitable and some less frequently used catalogues have not yet been incorporated into the VizieR database. These last ones can be accessed by FTP from the Astronomer's Bazaar.

Simple browsing modes

Besides the basic and advanced searches, the existing catalogues may be located through lists organized in several ways:

   Designations 
	Browse through the list of catalogues in its original hierarchical 
	organisation 
   Acronyms  
	Browse through the known catalog acronyms or abbreviations 
   Favorites 
	Browse through the list of the most frequently queried catalogs 
   Date 
	Browse through the catalogs recently entered into VizieR 
   Images/Spectra 
	Browse through catalogs having associated data,
	like images, spectra, data cubes (3-D images),
	time series... 
   The VizieR Mine 
	The VizieR Mine is a graphical interface to locate the
	catalogues existing on sky regions 
    (Catalogue Map) 
	The Kohonen Self-Organizing Map groups on nearby locations
	of a map catalogues having similar contents. 

VizieR and the Virtual Observatory

VizieR can deliver in its advanced mode the results in VOTable, a format which ensures a compatibility the Virtual Observatory tools.

VizieR tables are queriable by the VO standard TAP which use the SQL language extension ADQL.

VizieR may also in its advanced mode be queried from lists of targets and deliver results in a simple-to-parse tab-separated-values format.

Some programmatic interfaces are also available:

  • vizquery is a script which can perform remote queries in all available VizieR modes (individual queries, submission of lists, choice among several output formats); it can run from any Unix/Linux platform
  • Web Services access is also available – though it is inevitably slower than the direct HTTP connection.


Help, Documentation

VizieR mirrors

VizieR service Your VizieR service
VizieR at CDSStrasbourg, France
VizieR at ADACTokyo, Japan
VizieR at CADCVictoria, Canada
VizieR at CambridgeUK
VizieR at IUCAAPune, India
VizieR at INASANMoscow, Russia
VizieR at NAOCBeijng, China
VizieR at CFA HarvardCambridge, USA
VizieR at JACHilo, Hawaii, USA
VizieR at SAAOSAAO, South Africa

Notes

This service is maintained by François Ochsenbein and Gilles Landais at CDS; Patricia Vannier and Marianne Brouty are taking care of the prepartion of the tabular material at CDS, and Greg Schwarz takes care of the tabular material for the AAS journals.
Thanks also to all contributors, authors and editors.

If the access to catalogues with VizieR was helpful for your research work, the following acknowledgment would be appreciated: ``This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France''. The original description of the VizieR service was published in A&AS 143, 23 (2000).


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