Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109..332m&link_type=abstract
The Astronomical Journal (ISSN 0004-6256), vol. 109, no. 1669, p. 332-340
Astronomy and Astrophysics
Astronomy
46
Binary Stars, Orbital Elements, Speckle Interferometry, Astronomical Spectroscopy, Stellar Systems
Scientific paper
Xi Ursae Majoris (HR 4374/5) consists of a visual binary having a period of nearly 60 yr, the primary component of which is a 669 day astrometric and spectroscopic subsystem, and the secondary is a 4 day spectroscopic binary. We report here improved elements for the long-period visual system (AB) and the short-period astrometric system (Aa). We also report the first direct detection of a fifth component to the multiple system (Bc) from speckle observations obtained in 1988 at the Canada-France-Hawaii Telescope.
Hartkopf William I.
Mason Brian D.
McAlister Harold A.
Shara Michael M.
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