Astronomical papers prepared for the use of the American ephemeris and nautical almanac.
- Washington : Bureau of Navigation, Navy Dept., 1879-.
- v. : ill. ; 29 cm.
- Irregular
- Vol. 1, part 1 (1879)-
Some parts issued in revised editions.
Issued: <1891-1905> by Bureau of Equipment, Navy Dept.; <1917-1986> by Nautical Almanac Office, U.S. Naval Observatory.