C2A
Copyright © 1992-2020 Philippe Deverchère
Calcul des positions planétaires
Copyright © 1993-2020 Institut de Mécanique Céleste
BT-Atlas
Copyright © 1996-2020 Christian Buil
Catalogue Guide Star
The Guide Star Catalog (GSC), version 1.1 (or subsequent versions, if applicable), is copyrighted by the Association of Universities for Research in Astronomy, Inc., and is reproduced here by permission.
The scientific efforts leading to the production of the Guide Star Catalog are described in Volume 99, pp. 2019-2154 of the Astronomical Journal and in text files on the CD-ROM version of the GSC from which data contained herein were extracted.
Copyright 1996 Philippe Deverchère and its licensor. All rights reserved.
PHILIPPE DEVERCHERE'S LICENSOR MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE GSC OR ITS USE AND OPERATION FOR ANY PURPOSE. THE EXCLUSION OF IMPLIED WARRANTIES IS NOT PERMITTED BY SOME JURISDICTIONS. THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.
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Catalogue USNO-SA1.0 et USNO-A2.0
Copyright © 1996-2020 US Naval Observatory
Catalogues UCAC1, UCAC2, UCAC3 et UCAC4
Copyright © 1996-2020 US Naval Observatory
Catalogue Hipparcos
Copyright © 1997 ESA
Catalogue Tycho-2
Copyright © 2000 European Southern Observatory
Catalogue GCVS
Copyright © 2008 Sternberg Astronomical Institute, Moscow, Russia
Catalogue WDS
Copyright © 2020 United States Naval Observatory
Catalogue PGC 2003
Copyright © 2020 Paturel G., Petit C., Prugniel P., Theureau G., Rousseau J., Brouty M., Dubois P., Cambresy L.
Catalogue Saguaro Astronomy Club
Copyright © 2020 Saguaro Astronomy Club