NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant Positions versus Map Datums?
From: Rodney Myrvaagnes
Date: 2002 Jan 15, 9:33 PM
From: Rodney Myrvaagnes
Date: 2002 Jan 15, 9:33 PM
On the Texas web site, those two are very close together. Look at http://www.Colorado.EDU/geography/gcraft/notes/datum/gif/shift.gif Nobody could distinguish NAD27 from WGS84 with a sextant in Austin. Is there really a place where they are a mile apart? On Tue, 15 Jan 2002 19:50:53 -0500, Jared Sherman wrote: >Peter- >> >Nope. Go from NAD27 to WGS84 and the world can move a mile instantly. How much it moves, and which way it moves, depends on the datum change and also on your position on the chart, i.e. some places "move" less than others. Rodney Myrvaagnes J36 Gjo/a "Religious wisdom is to wisdom as military music is to music." "What contemptible scoundrel stole the cork from my lunch?" -- W. C Fields
