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Outstanding! Thanks!
My implementation of Meeus's algorithms and tables from Astronomical Algorithms is giving me positions of the celestial bodies within an arcsecond for everything except the moon, where I'm seeing errors of over ten arcseconds in declination in some testcases (Meeus says the error in declination should generally be no more than four arcseconds). While ten arcseconds is more than good enough for any celestial navigation application (hell, 30 arcseconds would be good enough!), still I'd like to get the moon right too. No doubt the NOVAS code will do the job. Thanks again, Tom Dacon "Vic Fraenckel" wrote in message ... Tom Dacon wrote: | Hal, do you have a link to somewhere that has the NOVAS code? Try http://aa.usno.navy.mil/software/novas/novas_info.html HTH Vic -- __________________________________________________ ______ Victor Fraenckel - The Windman KC2GUI www.windsway.com Home of the WindReader Electronic Theodolite Read the WIND "Victory at all costs, victory in spite of all terror, victory however long and hard the road may be; for without victory there is no survival." - Winston [Leonard Spencer] Churchill (1874 - 1965) Dost thou not know, my son, with how little wisdom the world is governed? -Count Oxenstierna (ca 1620) to the young King Gustavus Adolphus | |
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