Volume 376, Number 1, September II 2001
|Page(s)||325 - 332|
|Section||Atomic, molecular, and nuclear data|
|Published online||15 September 2001|
M2000: An astrometric catalog in the Bordeaux Carte du Ciel zone *
Observatoire de Bordeaux, CNRS UMR 5804, BP 89, 33270 Floirac, France
Corresponding author: M. Rapaport, firstname.lastname@example.org
Accepted: 26 June 2001
During four years, systematic observations have been conducted in drift scan mode with the Bordeaux automated meridian circle in the declination band . The resulting astrometric catalog includes about stars down to the magnitude limit . Nearly all stars (96% ) have been observed at least 6 times, the catalog being complete down to . The median internal standard error in position is mas in the magnitude range , which degrades to mas when the faintest stars are considered. M2000 also provides one band photometry with a median internal standard error of mag. Comparisons with the Hipparcos and bright part of Tycho-2 catalogs have enabled us to estimate external errors in position to be lower than 40 mas. In this zone and at epoch 1998, the faint part of Tycho-2 is found to have an accuracy of 116 mas in α instead of 82 mas deduced from the model-based standard errors given in the catalog.
Key words: astrometry / catalogs
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.