Spectroscopic orbital elements for the A-type binary HD 208509

Details Spectroscopic orbital elements for the A-type binary HD 208509 Spectroscopic orbital elements for the A-type binary HD 208509

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jrasc..86..259h&link_type=abstract

Journal of the Royal Astronomical Society of Canada (ISSN 0035-872X), vol. 86, no. 5, p. 259-265.

Astronomy and Astrophysics

Astrophysics

A Stars, Binary Stars, Orbital Elements, Stellar Orbits, Stellar Spectra, B Stars, Late Stars, Radial Velocity

Scientific paper

Observations of the moderately bright A-type star HD 208509 have been made during the past two decades with the 1.2 m and 1.8 m reflectors at the Dominion Astrophysical Observatory. These data have been analyzed and a set of spectroscopic orbital elements, including a period of 28.8184 days, has been obtained for the first time. A small number of radial velocities obtained independently almost ten years before we began our observations have been used to confirm the orbital period found by us. The eccentricity, though small, is found to differ significantly from zero.

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