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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: azimuth bearing on celestial bodies
From: Jim Thompson
Date: 2005 Aug 20, 21:28 -0300
From: Jim Thompson
Date: 2005 Aug 20, 21:28 -0300
I often use precalculated altitudes to find a body. I just sweep the horizon in the approximate azimuth. I do use a handbearing compass to orient myself, I think that your Silva should be just as precise in this situation, given that I usually only need to be within about 5-10 degrees. It's not likely that I find two magnitude 2-3 bodies at the same altitude within a band that narrow, even given the 5 degree altitude error range using 2102-D. Jim Thompson www.jimthompson.net -------------------- Outgoing email scanned by Norton Antivirus > -----Original Message----- > From: T. Shanklin > What is the best way to find an approximate bearing on a celestial body or > conversely, to find a celestial body using a bearing? I've been doing it > lately by simply facing forward in the direction of the sun/planet/moon > after shooting a sextant sight and trying to be accurate using my trusty > Silva hiking compass with sighting mirror. This has worked well > in the past > for getting rough estimates which I use as a check on my > calculated azimuth. > But I just recently purchased a Starfinder 2102-D and find that I might > need a more accurate way to find a bearing in help locating the desired > star. I'm thinking I'll just stand facing the general direction with the > sextant set for the proper altitude of the body (according to 2102-D) and > start scanning.