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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Calculators revisited
From: Nigel Gardner
Date: 2000 Dec 11, 4:44 AM
From: Nigel Gardner
Date: 2000 Dec 11, 4:44 AM
The first machine that I had for sight reduction was a TI58 and the last one a casio 730 but to be honest rarely used them, prefering to do the sight reductions on a bit of paper from the nautical almanac and Hughes tables. The advantage as far as I was concerned was that it was the way I was brought up and therefore comfortable with it and more importantly it was much easier to check the figures as well as detecting an error if a silly answer came out. Regarding bringing the sun down, I am surprised that someone was taught to bring the sextant down for a sunshot (i.e. setting the sextant to zero, aiming at the sun then rotating the sextant about the index arm to the horizon) because of the glare. It is a good technique for faint bodies (particularly Polaris) but does need practice. NG