The primary star is a yellow-orange main sequence dwarf of spectral type K1, and the secondary star is an orange main sequence dwarf of spectral type K5.
In 1855, Capt. W. S. Jacob of the Madras Observatory of the East India Company claimed that the orbit of the binary showed an anomaly, and it was "highly probable" that there was a "planetary body in connexion with this system". T. J. J. See made a stronger claim for the existence of a dark companion in this system in 1899, but Forest Ray Moulton soon published a paper proving that a three-body system with the specified orbital parameters would be highly unstable. The claims by Jacob and See have both been shown to be erroneous. Jacob's claim was probably one of the first for an exoplanet based on astrometric evidence.
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Last updated on Friday July 25, 2008 at 07:02:22 PDT (GMT -0700)
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