Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982japa....3....1g&link_type=abstract
Journal of Astrophysics and Astronomy, vol. 3, Mar. 1982, p. 1-4.
Astronomy and Astrophysics
Astrophysics
2
Binary Stars, Radial Velocity, Electrophotometers, Northern Sky, Orbital Elements
Scientific paper
It is shown through photoelectric radial-velocity measurements that HD 105341 is a spectroscopic binary with a near-circular orbit and a period of 194 days. A table listing the 51 photoelectrically determined radial velocities that are now available for the solution of the orbit of this binary is included. Also given are the elements of the orbit as computed from the data in the table. It is noted that the eccentricity is small, differing from zero by only a little more than two standard deviations. The statistical tests laid down by Bassett (1978) are used to determine whether the orbit should be regarded as having finite eccentricity or as being truly circular. The tests agree in showing that the probability that the apparent eccentricity arises by chance, that is, that the orbit is truly circular, is between 5 and 10%.
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