NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Brad Morris
Date: 2013 Nov 17, 23:41 -0500
Hi Randall
I was referring to Dave's silly arithmetic error. He states first that to be a competent observer, you must observe for 10,000 hours. Then he calculated (erroneously) therefore that it took 30 minutes per each of your observations. Then, realizing he made an arithmetic mistake, restates that its 2 hours per observation. My comment (to Dave), was that the result was dependent on the mastery of arithmetic. Which it remains.
Brad
I am not sure what you are referring to. An "oservation" is the measure of an altitude with a sextant, plus noting time to the nearest second. This usually takes less than a minute at most. My 5000 includes sights of sun, stars, planets, lunar distance, sun index correction sights etc. Most were reduced by USNO, others by 229 and LOC. It has taken just over 3 years doing this as a hobby to get to this point. It is a fascinating and absorbing passtime.
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