Back Catàleg d'Estrelles Dobles Washington Catalan Washington Double Star Catalog German Catálogo de Estrellas Dobles Washington Spanish Catalogue d'étoiles doubles de Washington French Washington Double Star Catalog Hungarian Washington Double Star Catalog Italian ワシントン重星カタログ Japanese 워싱턴 이중성 카탈로그 Korean Вашингтонски каталог на двоѕвезди Macedonian Catálogo de Estrelas Duplas Washington Portuguese
| Alternative names | WDS |
|---|---|
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.