NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: fix with the noon shot...
From: Johan Smit
Date: 1997 Oct 28, 11:06 PM
From: Johan Smit
Date: 1997 Oct 28, 11:06 PM
> At 05:01 PM 10/27/97 -0500, Pierre H Boucher wrote: > >An other solution would be to preset the sextant to a lower > >altitude (5, 10, or 15 minutes prior to meridian passage) and when > >the sun going up reaches the preset altitude, note the time. Hi all, Why bother? If the sextant reading does not appreciably go higher any more, you are near enough noon. What does it matter if you are a few minutes off noon? The sun does not move much vertically around noon. The error is certainly less than I had due to swells. That bothered me a lot in the little 28' sloop I recently did a solo Atlantic crossing in. The readings on the crest differed much from readings in the trough. Reagards Johan Smit smit.js@pixie.co.za P.O.Box 9551 George 6530 RSA Tel +2744,8745533 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-= =-= TO UNSUBSCRIBE, send this message to majordomo@ronin.com: =-= =-= navigation =-= =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=
