NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Astronomical Refraction: Computational Method for All Zenith Angles
From: Marcel Tschudin
Date: 2005 Aug 17, 17:25 +0300
From: Marcel Tschudin
Date: 2005 Aug 17, 17:25 +0300
Correction refering my comment in the foregoing mail: > According to the curve shown on the page from Andrew Young > http://mintaka.sdsu.edu/GF/explain/optics/disp.html it would > correspond to a wavelength at the red end of the visible spectrum .... It actually corresponds to about 550nm, which is greenish yellow. This indicates then that the wrong value for alpha is really a misprint. Sorry for having misread the grap Marcel
