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In coastal pilotting these are known as Horizontal distance bearings.Pick 2
or more terrestial objects.Turn the sextant on it's side and take the angles
between the 2 or 3 objects by superimposing one of the objects over one of
the remaining objects.Dip is not a consideration in taking Horizontal
angles. Write the angles down and go to the chart.With dividers find the
distances between each of the objects.Your position will be tangental to the
distance between the objects.Calculate the distance off,using dividers from
each point draw in the radius and where the lines intersect is your
position.
-----Original Message-----
From: Peter Fogg [mailto:ffive@TPG.COM.AU]
Sent: Monday, March 17, 2003 16:14
To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM
Subject: Re: Sextant accuracies


> From: Rodney Myrvaagnes 

> That doesn't mean you couldn't use a sextant. You just have to turn it
> on its side. The angle between two charted objects generates a good
> circular LOP.
Could you go into a little more detail about this please

>  A three-legged protractor can be used if you can see
> three charted objects.
>
this too - never came across of these beasties - sounds vicious ..

   

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