Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989scim.book.....w&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Astrometry, Astronomical Catalogs, Binary Stars, Interferometry, Star Clusters, Astronomy, Bibliographies, Indexes (Documentation), Speckle Patterns, Tables (Data)
Scientific paper
The machine-readable version of the catalog, as it is currently being distributed from the Astronomical Data Center, is described. The catalog is a compilation of measurements of binary- and multiple-star systems obtained by speckle interferometric techniques; this version supersedes a previous edition of the catalog published in 1985. Stars that have been examined for multiplicity with negative results are included, in which case upper limits for the separation are given. The second version is expanded from the first in that a file of newly resolved systems and six cross-index files of alternate designations are included. The data file contains alternate identifications for the observed systems, epochs of observation, reported errors in position angles and separation, and bibliographical references.
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