[1] The GSC 03547-01402 system was within the initial field of view of the Kepler Mission spacecraft,[1] which confirmed the transit and orbital properties of the planet with significantly improved confidence and observed occultation and light curve characteristics consistent with a strongly absorbing atmosphere with limited advection to the night side.

A study in 2012, utilizing the Rossiter–McLaughlin effect, determined the planetary orbit inclination with respect to the rotational axis of the star, equal to 155±37°.

This method analyses the brightness variation caused by the rotation of a star as its shape is tidally distorted by the planet.

[14] In December 2016, a letter published in Nature Astronomy by Dr. David Armstrong and his colleagues described evidence of strong wind jets of variable speed on HAT-P-7b.

In particular, the brightest point on the planet shifts its phase or position on a timescale of only tens to hundreds of days, suggesting high variation in global wind speeds and cloud coverage.