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Re: Old style lunar
From: Alexandre Eremenko
Date: 2004 Dec 9, 21:22 -0500
From: Alexandre Eremenko
Date: 2004 Dec 9, 21:22 -0500
On Thu, 9 Dec 2004, Frank Reed wrote: > +/- 1 arcsecond or better. Wow! I am planning to make some program like this myself (probably not very soon) so I will need your advise. You used Meeus book, "Astronomical Algorithms", correct? Did you put ALL terms of Chapter 47 into your program? Can you tell the time of an eclipse in some year BC with your program? With what accuracy? > There is also a complete Nautical Almanac from 1804 > at the Mystic Seaport > Library web site with all of the preducted lunar > distances from that year if you > want to do some more comparisons. I will do it. Actually Chauvenet says that British almanac was in error of about 28" (sometimes) in 1850-s, and this was already discussed on this list. Anyway, it is very interesasting (at least to me) to see how the progress in mathematical Lunar theory in XIX cent can be expressed in numbers:-) Alex.
