A new orbit determination for the astrometric binary Alpha Ophiuchi

Details A new orbit determination for the astrometric binary Alpha Ophiuchi A new orbit determination for the astrometric binary Alpha Ophiuchi

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..314a&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 675, May 1992, p. 314, 315.

Astronomy and Astrophysics

Astronomy

7

Astrometry, Binary Stars, Stellar Orbits, Orbit Calculation, Orbital Elements, Parallax

Scientific paper

An improved orbit of the astrometric binary Alpha Ophiuchi (V = 2.08, spectral class = A5 III) is presented. The data were obtained from the Allegheny and Sproul Observatories for the periods of 1934-1963 and 1946-1964 and previously unmeasured Sproul plates for the period of 1965-1967 and 1985-1990. It is found that the combined data over six revolutions yield an orbit with P = 8.67 yr.

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