Zeta Herculis, triple star

Details Zeta Herculis, triple star Zeta Herculis, triple star

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lastr..90..344b&link_type=abstract

L'Astronomie, vol. 90, July-Aug. 1976, p. 344-350. In French.

Astronomy and Astrophysics

Astronomy

1

Dwarf Stars, Stellar Mass, Stellar Models, Three Body Problem, Triple Stars, Secular Variations, Stellar Evolution, Stellar Luminosity, Stellar Motions, Ternary Systems

Scientific paper

Observations of Zeta Herculis from 1828 through the present are analyzed. From anomalies in the period and the systematic character of the O-C residues, it is concluded that Zeta Herculis is a triple star. The third body is thought to be associated with the primary, the luminosity and mass of which are anomalously high for its spectral class. The orbit of the third body is apparently non-Keplerian; its mass is estimated to be 0.19 solar masses. It is speculated that the third body is a red dwarf.

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