The name was selected in the NameExoWorlds campaign by the Czech Republic, during the 100th anniversary of the IAU.

Follow-up photometry was provided by the extended team, a collaboration of professional and amateur astronomers.

The team obtained better-quality light curves to guide the photometric and spectroscopic follow-up necessary to classify a candidate as an actual planetary companion.

[1] To confirm XO-5b's planetary nature radial velocity observations of XO-5 were made with the high-resolution spectrograph on the 11-meter Hobby–Eberly Telescope located at McDonald Observatory, in order to measure the mass of the planet.

Commencing on December 7, 2007, a total of ten radial velocity measurements were made which confirmed XO-5b's status as a planet.