Other
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.1014h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 98, Sept. 1989, p. 1014-1039. Research supported by the Space Telescope Science Inst
Other
135
Binary Stars, Orbital Elements, Speckle Interferometry, Stellar Orbits, Visual Observation, Astronomical Catalogs, Orbit Calculation, Tables (Data), Weighting Functions
Scientific paper
New combined speckle/visual orbital elements are presented for 28 close binary systems with periods ranging from 2.7 to 213 yr and semimajor axes from 0.06 to 0.81 arcsec. New orbital results are presented for ADS 1105 = STF 115 AB, ADS 1473 = Ho 311, and ADS 14121 = Wck Aa, and the elements of a number of other systems have undergone major revisions. All orbits are equinox 200, and ephemeris tables based on these orbits provide predictions of separations and position angles for the next 5 to 40 yr, depending on the derived period. The orbit calculation method and the weighting scheme for the observations are discussed in detail.
Franz Otto G.
Hartkopf William I.
McAlister Harold A.
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