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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: bubble sextant index error
From: Bill B
Date: 2005 Dec 10, 17:55 -0500
From: Bill B
Date: 2005 Dec 10, 17:55 -0500
> So, how do I determine the index error of my bubble sextant without a water > horizon? Michael If your location is known, make a series of observations. After adjusting for refraction, the difference between your observation and calculated Hc will be the IE. Bill