The binary star 70 Ophiuchi revisited

Details The binary star 70 Ophiuchi revisited The binary star 70 Ophiuchi revisited

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jrasc..82..140h&link_type=abstract

Journal of the Royal Astronomical Society of Canada (ISSN 0035-872X), vol. 82, June 1988, p. 140-145.

Astronomy and Astrophysics

Astronomy

11

Astronomical Spectroscopy, Binary Stars, Stellar Orbits, Visual Observation, Interstellar Matter, Radial Velocity, Stellar Parallax

Scientific paper

Positional and spectroscopic observations of 70 Oph through the
periastron passage of 1984 give a corrected orbit (P = 88.3 yr) and
component masses of 0.83 and 0.67 solar masses. The deviations from
elliptical motion seem to be entirely due to unusually large systematic
errors in the visual measures of the 19th century.

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