A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John D. Howard
Date: 2016 Dec 17, 08:33 -0800
You said you were using the Aeronautical Almanac that gives the angle to minutes of arc. May I suggest you use the USNO Air Almanac ( Free download ) that will give you the same accuracy as the British Nautical Almanac or the USNO Nautical Almanac. The quick interpolation table on the cover gives you arc to minutes but on page A 164 the table gives you the arc to one tenth of a minute. ( same as Nautical Almanac)
Thank you for posting your sights. It is -5 degrees F here in my back yard so even if the sun was shining ( which it is NOT ) I would not be outside with my sextant. You got to love New Zealand in December!