A New Orbit for the Spectroscopic Binary θ^{2} Orionis a.

Details A New Orbit for the Spectroscopic Binary θ^{2} Orionis a. A New Orbit for the Spectroscopic Binary θ^{2} Orionis a.

Sep 1943

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1943apj....98..228m&link_type=abstract

Astrophysical Journal, vol. 98, p.228

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

New elements have been derived from 22 spectrograms obtained at Yerkes and McDonald observatories: P = 21.0315 days V = +34.5 km/sec, e = 0.131, K = +105.8 km/sec, w = 151.00, and T = JD 2430639.455. There is no appreciable difference in these elements from those determined by Struve in 1924, except that his eccentricity was e = 0.27. This difference is probably not physically real. The interstellar calcium line K gives 18.9 ± 3.5 km/sec

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