Astronomical data in machine readable form.
Contributors: Seidelmann, P. Kenneth.; United States Naval Observatory.
Series: United States Naval Observatory circular ;; no. 164
Publisher: U.S. Naval Observatory
Published: 1981
Place of publication: Washington, D.C
Language: eng
Number of pages: 19
Subjects: Astronomy -- Bibliography.
Notes: "Supersedes Circular 146 of April 19, 1974"--P. 1.
"December 29, 1981."