Photographic measurements of ADS 11632, a binary with a possible unseen companion

Details Photographic measurements of ADS 11632, a binary with a possible unseen companion Photographic measurements of ADS 11632, a binary with a possible unseen companion

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..765s&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 10, Oct. 1984, p. 765-770) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, Sept.-Oc

Astronomy and Astrophysics

Astronomy

1

Astrometry, Astronomical Photography, Binary Stars, Companion Stars, Photographic Plates, Position Errors, Secular Variations

Scientific paper

Several hundred photographic plates of the double star ADS 11632 were examined for evidence of a third member. The analysis concentrated on deviations from a calculated parabola to discern perturbations in the relative motions of the A and B components. Numerous small residuals were attributed to seasonal changes which affected the image quality, since the objects are near the limits of photographic resolution. The smallness of observed, unaccountable perturbations (average 0.003 arcsec) was insufficient to support the presence of another companion on the basis of current data.

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