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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sign of d in HO249
From: David Pike
Date: 2020 Apr 23, 10:06 -0700
From: David Pike
Date: 2020 Apr 23, 10:06 -0700
Tony Oz you wrote: I'm no expert in HO249, but could not left this out:
...declination, which are small circles
The Declination is the arc measured along the great circle - between the equator and a pole (either Northern or Southern).
If you read the full text of my post it read: 'but entry to the tables involves parallels of latitude and, I suppose, declination, which are small circles.'. I was talking about lines of equal declination, 'declinobars' if you like, not declination itself, just like lines of equal latitude are small circles. DaveP
