We measured the angular diameter of the exoplanet host star \iota Dra with Georgia State University ’ s Center for High Angular Resolution Astronomy ( CHARA ) Array interferometer , and , using the star ’ s parallax and photometry from the literature , calculated its physical radius and effective temperature .
We then combined our results with stellar oscillation frequencies from Zechmeister et al .
( 31 ) and orbital elements from Kane et al .
( 16 ) to determine the masses for the star and exoplanet .
Our value for the central star ’ s mass is 1.82 \pm 0.23 M _ { \odot } , which means the exoplanet ’ s minimum mass is 12.6 \pm 1.1 M _ { Jupiter } .
Using our new effective temperature , we recalculated the habitable zone for the system , though it is well outside the star-planet separation .