Institute of Mechanic Celetial of Calculus of Ephemerides
http://www.imcce.fr/langues/en/
http://www.imcce.fr/en/ephemerides/formulaire/form_ephepos.php
ftp://ftp.imcce.fr/

IMCCE/BDL : les publications officielles
http://www.imcce.fr/promenade/pages2/263.html

Jet Propulsion Laboratory
http://ssd.jpl.nasa.gov/
http://ssd.jpl.nasa.gov/?horizons

The SAO/NASA Astrophysics Data System
http://adswww.harvard.edu/

Astronomy & Astrophysics
http://www.aanda.org/

International Earth Rotation and Reference Systems Service
http://www.iers.org/

Systems of Reference time space
http://syrte.obspm.fr/

http://www.usno.navy.mil/USNO
http://aa.usno.navy.mil/software/index.php

http://www.iau.org/
http://www.iausofa.org/

http://www.jpl.nasa.gov/
http://astro.ukho.gov.uk/eclipse/

Nasa Eclipse Website

https://eclipse.gsfc.nasa.gov/eclipse.html