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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Refraction at the horizon. was: Re: Celestial Navigation without a sextant.
From: Marcel Tschudin
Date: 2008 Mar 16, 20:56 +0200
From: Marcel Tschudin
Date: 2008 Mar 16, 20:56 +0200
George wrote: > I agree that one might well expect there to be significant differences > between refraction at sunrise and sunset. Has any information on that > subject been published? Yes, George. While my computer turns for finding iterative solutions I had some spare time to look in the various documentations saved "somewhere" on my computer. There I found the following paper which can be downloaded as pdf-file from here http://www.journals.uchicago.edu/doi/abs/10.1086/378214 Russell D. Sampson et al, Variability in the Astronomical Refraction of the Rising and Setting Sun, Astronomical Society of the Pacific, 115:1256�1261, October 2003 I don't have his paper from 1994 with the data to which he refers to. I hope this helps. Marcel --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---