Orbits of six visual binaries

Details Orbits of six visual binaries Orbits of six visual binaries

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...71..569c&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 71, no. 3, Dec. 1987, p. 569-574. In French.

Astronomy and Astrophysics

Astrophysics

6

Binary Stars, Double Stars, Orbital Elements, Stellar Orbits, Astronomical Photometry, Interferometry, Orbit Calculation, Parallax, Stellar Magnitude

Scientific paper

Recent interferometric and visual observations have been used to compile orbital elements for the binaries COU 79, Phi 342, ADS 5726, COU 292, ADS 15487, and COU 542. The problematic binaries COU 79 and Phi 342 are discussed in detail. The results for COU 79 indicate a dynamic parallax of 0.0182 arcsec and absolute visual magnitudes of 2.5 and 2.8, values which are not consistent with the previously-determined spectral type of F6V. A parallax of 0.01420 arcsec is found for Phi 342, and the visual magnitudes of 2.74 and 3.13 are indicative of superluminous stars outside of the main sequence.

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