NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: accuracy of Cook's lunars
From: Alexandre Eremenko
Date: 2013 Jan 7, 21:51 -0500
From: Alexandre Eremenko
Date: 2013 Jan 7, 21:51 -0500
Dear Hanno, I am not sure that I understood correctly your question: How accurately can WE (you and I) calculate moon's position for 1774 NOW ? Very easily and accurately. Use any online almanac. I used Frank's almanac. There are no problems with that. How accurately could Cook (or his astronomers) calculate the Moon position? The answer is in THEIR almanac (of which Navlist has a copy somewhere in its files, I have a paper copy from this source). Their almanac of 1774 is a little bit incorrect. But just a little. Our modern almanacs can be guaranteed for 2000 years back or forward, I am sure. When I asked Frank, he said his almanac has to be correct for at least 500 years. Alex. > Eremenko: > > I read your paper with much interest. Thank you so much! > > Now, the question remains how accurately one can > calculate the moons position in 1774 given the diffculties. > > And if one can, is there some proof of the correctness > of such calculations? > > h > > > > > : http://fer3.com/arc/m2.aspx?i=121763 > > >
