The observational status of wide visual binaries

Details The observational status of wide visual binaries The observational status of wide visual binaries

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26as...65..189b&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 65, no. 1, July 1986, p. 189-193. BMFT-supported research.

Astronomy and Astrophysics

Astrophysics

5

Astronomical Photography, Binary Stars, Position (Location), Visual Observation, Error Analysis, Statistical Analysis, Stellar Motions

Scientific paper

Published observational data on 3657 visual binaries with separation greater than 5 arcsec are analyzed statistically, in a study of observational status conducted in preparation for the Hipparcos satellite mission. The frequency distribution of the number of observations, the number of observations by epoch, the deviation of visual or photographic observations from a constant mean position or mean motion, and the distribution of mean errors from the positions predicted for the epoch 1989.0 are presented in histograms. The overall rms error in one coordinate is estimated as + or - 0.21 arcsec for the visual observations and + or - 0.037 arcsec for the photographic observations.

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