HD 164604 b is an extrasolar planet discovered in January 2010 in association with the Magellan Planet Search Program.
Its star is classified as a K2 V dwarf and is roughly 124 light-years away from Earth.
The name was selected in the NameExoWorlds campaign by Chile, during the 100th anniversary of the IAU.
Caleuche is a large ghost ship from southern Chilean mythology which sails the seas around the island of Chiloé at night.
[4][5] An astrometric measurement of the planet's inclination and true mass was published in 2022 as part of Gaia DR3.