Preliminary list from Tycho observations (TIC data) Virtual Observatory Resource

Authors
  1. Halbwachs J.L.
  2. Baessgen G.
  3. Bastian U.
  4. Egret D.
  5. Hoeg E.,van Leeuwen F.
  6. Petersen C.
  7. Schwekendiek P.
  8. Wicenec A.:
  9. Published by
    CDS
Abstract

The selection of the stars of the Tycho program is mainly based on the Tycho input catalogue (TIC), prepared by Egret et al. (1992) from existing ground-based catalogues. The TIC is far to be the definitive list of the stars that will appear in the final Tycho catalogue however. The number of stars included within (3 million) is several times larger than the number eventually expected. The selection of the TIC stars that will remain in the final catalogue is planned in two steps : The former is the "Recognition" that is based on the first year of the scientific mission. The latter step of selection is the final reduction of the Tycho data, which will require a few more years. The recognition was completed in 1992, and, among the 3,154,204 stars of the TIC, about two third were not found in the observations. This catalogue presents the 1,049,971 stars that are still in the programme. The selection is nor definitive, nor complete; but it should contain only a small percentage of stars that will still be discarded. On another side, some stars missing in the TIC have been added to the Tycho program, but the expected number of additional stars to appear in the final catalogue should be about 5 % or less. The list was announced in Halbwachs et al (1994). It is completed with data (coordinates and magnitudes) from the main file of the Tycho Input Catalogue. The cross-identifications with the Hipparcos Input Catalogue or with the INCA database included in catalogue I/197/ are not repeated here.

Keywords
  1. astrometry
  2. apparent-magnitude
Bibliographic source Bibcode
1994A&A...281L..25H
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/I/207
IVOA Identifier IVOID
ivo://CDS.VizieR/I/207

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/207
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/207
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/207
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/207/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/I/207/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/I/207/catalog?

History

2004-06-30T14:08:13Z
Resource record created
2004-06-30T14:08:13Z
Created
2017-10-11T05:13:43Z
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