The nearby quadruple system G 107-69/70

Details The nearby quadruple system G 107-69/70 The nearby quadruple system G 107-69/70

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86..909h&link_type=abstract

Astronomical Journal, vol. 86, June 1981, p. 909-911.

Astronomy and Astrophysics

Astronomy

22

Astrometry, Binary Stars, Dwarf Stars, Star Clusters, Stellar Motions, Astronomical Photography, Stellar Parallax, White Dwarf Stars

Scientific paper

The binary system G 107-69/70 is nearby, having a relative parallax of 0.0896 + or - 0.0014 arcsec. The primary (G 107-69) is a newly discovered unresolved astrometric binary, with a best-period estimate of approximately 0.94 yr, suggesting that the faint component might be a low-mass red dwarf. The secondary (G 107-70) is a partially resolved binary, having a period of 20.5 yr, and consisting of low-mass white dwarfs.

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