HAT-P-36, also referred to as Tuiren[4] is a 12th magnitude G-type main-sequence star estimated to be approximately 958 light-years away from Earth[2] in the constellation Canes Venatici.

HAT-P-36 and its planet are named after characters from The Birth of Bran, a story in the book Irish Fairy Tales by James Stephens.

The names were proposed by John Murphy, a teacher at Regina Mundi College, Cork.

[5] A search for transit timing variation did not result in detection of additional planets in the system as at 2021.

[10] Surprisingly, a planetary orbital period increase by 0.014 seconds per year was detected by 2021.