A spectroscopic orbit for theta draconis from photoelectric radial velocities

Details A spectroscopic orbit for theta draconis from photoelectric radial velocities A spectroscopic orbit for theta draconis from photoelectric radial velocities

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988cha%26a..12..228l&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 12, Issue 3, p. 228-231.

Astronomy and Astrophysics

Astrophysics

Stars, Spectroscopic Binaries, Radial Velocities

Scientific paper

23 velocity measurements of the single-line binary θ Dra Were secured in 1985/86 using the radial velocity spectrometer of the Dominion Astrophysical Observatory. Combining with previous published data, an orbital period for 1898-1986 of P = 3.070 7943 +/- 0.000 0010 was derived. Fixing P at this value, elliptical and circular spectroscopic orbits were found; using Bassett's criterion, the circular orbit was adopted as the new spectroscopic solution.

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