Washington Double Star Catalog

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Washington Double Star Catalog
Survey type astronomical catalog Edit this on Wikidata
Target double star Edit this on Wikidata
The distribution of the objects of the catalog over the firmament is fairly even.

The Washington Double Star Catalog, or WDS, is a catalog of double stars, maintained at the United States Naval Observatory. The catalog contains positions, magnitudes, proper motions and spectral types and has entries for (as of June 2017) 141,743 pairs of double stars. The catalog also includes multiple stars. In general, a multiple star with n components will be represented by entries in the catalog for n-1 pairs of stars.


The database used to construct the WDS originated at Lick Observatory, where it was used to construct the Index Catalog of Visual Double Stars, published in 1963. In 1965, under the initiative of Charles Worley, it was transferred to the Naval Observatory.[1] It has since been augmented by a large number of measurements, from Hipparcos and Tycho, speckle interferometry, and other sources.[2]

See also[edit]


  1. ^ Charles Worley obituary, Geoffrey G. Douglass, Thomas E. Corbin, and Brian D. Mason, United States Naval Observatory. Accessed on line September 4, 2008.
  2. ^ The Washington Double Star Catalog, 2001.0, Brian D. Mason, Gary L. Wycoff, William I. Hartkopf, Geoffrey G. Douglass, and Charles E. Worley, Astrometry Department, United States Naval Observatory. Accessed on line September 4, 2008.

External links[edit]