NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Celestial Navigation without a sextant.
From: Paul Hirose
Date: 2008 Mar 07, 22:20 -0800
From: Paul Hirose
Date: 2008 Mar 07, 22:20 -0800
40 South wrote: > Supposing one was in a small boat with an accurate timepiece and the > necessary tables, how accurate could you determine your longitude by > observing the rising or setting of the sun or any other celestial > body? You could run an experiment using one of the online calculators at the U.S. Naval Observatory site. Enter a latitude and longitude (some convenient integer number of degrees) and note the calculated time and azimuth of sunrise. Then try changing the latitude or longitude by one degree and see how much difference it makes. http://aa.usno.navy.mil/data/ The third link down is probably the best for this. -- I block messages that contain attachments or HTML. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
