The brighter of the pair is a magnitude 12 star located approximately 1,660 light-years away.
[1] In 2008 a study was undertaken of 14 stars with exoplanets that were originally discovered using the transit method through relatively small telescopes.
These systems were re-examined with the 2.2M reflector telescope at the Calar Alto Observatory in Spain.
The previously unknown secondary star is a dim magnitude 14 K or M-type star separated by about 755 AU from the primary, appearing offset from the primary by about one arc second in the images.
This discovery resulted in a recalculation of parameters for both the planet and the primary star.