Articles written in Journal of Astrophysics and Astronomy
Volume 11 Issue 2 June 1990 pp 255-263
6 Dra has long been known to show small variations in radial velocity, and there is photometric and spectroscopic evidence that its spectrum is composite. We show, largely on the basis of a generous number of photoelectric radial velocities mainly obtained at Cambridge and Fick observatories, that the orbit is of mild eccentricity and has a period of 562 days and a semi-amplitude of 7 km s
Volume 40 | Issue 6
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