NavList:

But it seems to me (please, correct me if I'm wrong) that if there were no systematic error, you would not end up with a triangle at all. Provided you do everything else correctly, all three LOPs should intersect.

Mr. Franklin mentioned that some shoot a little low, making the Ho a little higher. I don't doubt this as I have some trouble deciding exactly when the star is touching the horizon. Perhaps this is due to all of the clutter on the horizon that's available to me. And maybe because I'm using a plastic sextant which flexes so much due to temperature that I can watch as two Sun images align themselves when the clouds part and the sextant warms up.

In any case, if you end up with a triangle on a three-body fix with an azimuth spread of less than 180°, the only way I can see that you would end up inside the triangle is if there were some huge anomalous error on the center shot.
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