# Validation of the new Hipparcos reduction

@article{Leeuwen2007ValidationOT,
title={Validation of the new Hipparcos reduction},
author={F. V. Leeuwen},
journal={Astronomy and Astrophysics},
year={2007},
volume={474},
pages={653-664}
}
• F. V. Leeuwen
• Published 2007
• Physics
• Astronomy and Astrophysics
• Context. A new reduction of the astrometric data as produced by the Hipparcos mission has been published, claiming accuracies for nearly all stars brighter than magnitude $\mathrm{Hp}=8$ to be better, by up to a factor 4, than in the original catalogue. Aims. The new Hipparcos astrometric catalogue is checked for the quality of the data and the consistency of the formal errors as well as the possible presence of error correlations. The differences with the earlier publication are explained… CONTINUE READING

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