The study in 2012, utilizing a Rossiter-McLaughlin effect, have determined the planetary orbit is probably aligned with the equatorial plane of the star, misalignment equal to °.

Physical characteristics

The planet is slightly less massive than Jupiter (0.919 ± 0.073 ) but its diameter is 84% larger. This give TrES-4 an average density of only about a third of a gram per cubic centimetre, approximately the same as Saturn's

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