Photographic astrometry of binary and proper-motion stars

Details Photographic astrometry of binary and proper-motion stars Photographic astrometry of binary and proper-motion stars

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89.1068h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, July 1984, p. 1068-1072.

Astronomy and Astrophysics

Astronomy

16

Astrometry, Astronomical Photography, Binary Stars, Mass Ratios, Stellar Mass, Stellar Motions, Astronomical Catalogs, Parallax, Photographic Measurement

Scientific paper

Plate series obtained at the 61-cm Sproul refractor of Swarthmore College were processed during the time October 1982 to December 1983. Parts of some plate series had been measured previously. The present investigation involves an evaluation of the entire material, taking into account 58 trigonometric parallaxes and 14 binary-star mass ratios. Table I lists the parallax results. The measured components of the annual motion are to three decimals of arc seconds. A summary of the mass-ratio results is provided in a second table. All observed objects are briefly discussed.

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