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We report the detection of asymmetry in the transit light curves of the110-day period companion to KOI-368, a rapidly rotating A-dwarf. Thesignificant distortion in the transit light curve is attributed to spin-orbitmisalignment between the transiting companion and the gravity darkened hoststar. Our analysis was based on 11 Long Cadence and 2 Short Cadence transits ofKOI-368.01 from the Kepler mission, as well as stellar parameters determinedfrom our follow-up spectroscopic observation. We measured the true obliquitybetween the orbit normal and the stellar rotation axis to be 69 +9/-10 deg. Wealso find a secondary eclipse event with depth 29 +/- 3 ppm at phase 0.59, fromwhich the temperature of the companion is constrained to 3060 +/- 50 K,indicating that KOI-368.01 is a late M-dwarf. The eccentricity is alsocalculated from the eclipse to be 0.1429 +/- 0.0007. The long period, highobliquity, and low eccentricity of KOI-368.01 allow us to limit a number ofproposed theories for the misalignment of binary systems.

A highly inclined orbit for the 110-day period M-dwarf companion KOI-368.01