A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John D. Howard
Date: 2016 Oct 16, 08:25 -0700
My hard copy of the Air Almanac is 1998 and it lists GHA of the sun and Aries and the SHA of the stars to the tenth of a minute. It also lists the dec. of the sun and stars to the tenth. The inside front cover has the 4 second interpolation table but on page A 164 and A 165 the table is for every second for ten minutes.
The only place that the new Air Almanac is less precise than the NA is the Moon and planets - they are listed to whole minutes only.
As you know, the Air Almanac is not printed anymore but is avaible ( free ) as a PDF download from the USNO website. Other than the Moon or planets the data is no less than the ( not free ) Nautical Almanac.