[8][5][9] In August 2022, this planet and its host star were included among 20 systems to be named by the third NameExoWorlds project.

[3] In 2019 a work by Hellard et al. discussed the possibility of measuring the Love number of transiting hot Jupiters using HST (Hubble Space Telescope)/STIS.

Neutral magnesium, calcium, vanadium, chromium, iron, and nickel, along with ionized sodium atoms, were detected.

However the low quality of available data precluded a positive identification of any molecular species, including water.

[22] By mid-2021, the presence of ions of iron, chromium, vanadium and calcium in the planetary atmosphere was confirmed.

[26][27] The sodium detected via absorption spectroscopy around WASP-121b[21] is consistent with an extrasolar gas torus, possibly fueled by a hidden exomoon resembling Io moon.