NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Zodiacal coordinates
From: Geoffrey Kolbe
Date: 2012 Sep 15, 09:22 +0100
From: Geoffrey Kolbe
Date: 2012 Sep 15, 09:22 +0100
At 15:16 14/09/2012, you wrote: >Hi, > >I am new to this list but perhaps I can help. > >The site you have visited is an astrological website and the >celestial positions are given according to astrological conventions. > >The first number is indeed the degree, followed by the zodiacal sign >(Aries starts at 0, Taurus at 30, Gemini at 60, etc.) and then the >number of arcminutes and arcseconds. The positions are ecliptical >and appear to be tropical. > >The R found at the end of some longitudes indicates that the >planet's motion is retrograde (astrologers find this very important). > >I hope that this helps. > >Rob van Gent Well Rob, this is an ephemeris which is obviously meant to be used for historical research as the validity period is 1600 to 2100. Astronomers at the start of that era would certainly recognize this format for ecliptic longitudes, which is still used by astrologers today, as you correctly say. And today, astrologers do not have much use for ecliptic latitudes (they never did) and most astrologers would probably not know a Right Ascension if it hit them between the eyes. Right Ascension today is (I think) only used by astronomers. I would conclude that this is actually an astronomical almanac, formatted to be useful for historical research. As for it being as astrological website, I struggle to actually find the word "astrology" anywhere on the website! Geoffrey