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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Biruni and the radius of the Earth by dip
From: Marcel Tschudin
Date: 2011 Jan 5, 17:56 +0200
From: Marcel Tschudin
Date: 2011 Jan 5, 17:56 +0200
On Wed, Jan 5, 2011 at 5:27 PM, Apache Runner wrote: > Where did you get 6 moa from? Refr = ATN(S'/(r/k) with S': Distance to the refracted horizon r: Radius of earth There was an other interesting Web-page on this subject in German. Unfortunately it can now only be reftrieved from the cache: http://webcache.googleusercontent.com/search?q=cache:PJS0LNSWJcMJ:www.praxelius.de/astro/erdkruem.htm+praxelius+refraktion&cd=2&hl=de&ct=clnk&client=firefox-a Just in case it is of interest to you, I saved before the complete Web-page on my computer. Marcel
