NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Line of Position Fix
From: Lu Abel
Date: 2012 Oct 18, 12:51 -0700
From: Lu Abel
Date: 2012 Oct 18, 12:51 -0700
Easiest fix of all is crossing a sun with a first/last quarter moon since you can shoot both during the day (and therefore hopefully have a clearly visible horizon). Choosing the moon near first/last quarter will put it at roughly 90 degrees to Sun giving good crossing lines.
Second easiest fix is to take two sun shots three or more hours apart, the LOPs from them will also give a good crossing angle.
If not doing either of these on land, you will have to advance the first line of position by the distance and direction you've moved between the first and second shots.
Second easiest fix is to take two sun shots three or more hours apart, the LOPs from them will also give a good crossing angle.
If not doing either of these on land, you will have to advance the first line of position by the distance and direction you've moved between the first and second shots.
From: Debra Hillman <wombatroo@hotmail.com>
To: NavList@fer3.com
Sent: Thursday, October 18, 2012 12:21 PM
Subject: [NavList] Line of Position Fix
Could somebody help me with my problem . I am learning on my own at present from books on celestial navigation.I need to get a fix with two lines of position but not sure which celestial body other than the sun and the best times of the day to achieve the fix.
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