Who should use it
It strikes a balance between being old enough to be out of copyright (in practice, if not in law) and recent enough to have relatively accurate star positions. It also predates many paywalls.
While the NGA no longer produces the commercial almanac (it is now jointly published), their legacy sites sometimes host older editions. Use site-specific search: site:nga.mil "nautical almanac" 2008 .
A standard full edition is approximately 319 to 378 pages . Many PDF versions found today are "Selected Pages" meant for textbook exercises rather than full-year navigation. Key Features & Contents