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Title:
The binary star 70 Ophiuchi revisited
Authors:
Heintz, W. D.
Affiliation:
AA(Swarthmore College, PA)
Publication:
Royal Astronomical Society of Canada, Journal (ISSN 0035-872X), vol. 82, June 1988, p. 140-145.
Publication Date:
06/1988
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL SPECTROSCOPY, BINARY STARS, STELLAR ORBITS, VISUAL OBSERVATION, INTERSTELLAR MATTER, RADIAL VELOCITY, STELLAR PARALLAX
Bibliographic Code:
1988JRASC..82..140H

Abstract

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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