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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
D correction
From: Richard Bash
Date: 2010 Jan 29, 09:55 -0600
From: Richard Bash
Date: 2010 Jan 29, 09:55 -0600
Hello. I am living in Hot Springs, Arkansas, and am studying celestial on my own. Have several books, including Bowditch. I am unclear about the so-called "d correction." It seems the d number in the dailt pages of the Nautical Almanac should really be called a "d factor" or something similar. Mary Blewitt's book says to use this d factor to get into Table 5 of H.O. 249. My confusion stems from no one else mentioning Table 5 (except H.O. 249 itself). Can/would someone explain to me, at the 8th grade level, about the d factor for sun, moon and planet shots. Thanks in advance. E-mail is fine (dickbash[at]bashlaw.com). You have a fine resource here. Hope I am accepted as a list member. Regards, Richard Bash Hot Springs, AR
