NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Is it lunch yet?
From: Bill B
Date: 2006 Jun 22, 00:41 -0400
From: Bill B
Date: 2006 Jun 22, 00:41 -0400
> When taking a noon sight, lets say LAN is 1208. What is a good time bracket to > consider ( how much before and after LAN). What is an approaite interval for > the sights (every X minutes)? > Thank you Guy Depends on your latitude and the date. In some cases the sun can hang up there (same elevation for cel nav purposes) for a relatively long period of time. In other situations, it is more fleeting. Do a few what-ifs near solstices and equinoxes at different latitudes with the same time intervals before and after LAN and determine the spread. As an example, right about now at the north pole the elevation of the sun at LAN stays pretty much the same for a LONG period of time. Pretty much the same all day, (with daylight for 24 hours). Play with that. I don't mean to seem curt, but I'm of five days of sailing in seven hours, so time is a limiting factor. Bill
