NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lewis and Clark lunars: a request for help.
From: Wolfgang K�berer
Date: 2004 Apr 8, 09:22 +0200
From: Wolfgang K�berer
Date: 2004 Apr 8, 09:22 +0200
Dear George, do you need a program or do you need just accurate data? In the second case I would try the Jet Propulsion Laboratory site "HORIZONS" which provides "access to key solar system data and flexible production of highly accurate ephemerides for solar system objects (163000+ asteroids and comets, 128 natural satellites, 9 planets, the Sun, L1, L2, select spacecraft, and system barycenters)" (their description) from 3000 B.C. to 3000 A.D. (http://horizons.jpl.nasa.gov/horizons.html). I have used it to calculate values for solar declination to compare with the tables in the early navigation manuals and that was most useful. Regards, Wolfgang
