Original: In October 2002 it was officially named after Themisto , IAUC 7998 : Satellites of Jupiter 2002 October 22 ( naming the moon ) daughter of the river god Inachus by Zeus ( Jupiter ) in Greek mythology .
Simplified: In October 2002 it was officially named after ThemistoIAUC 2002 October 22 ( naming the moon ) , daughter of the river god Inachus by Zeus ( Jupiter ) in Greek mythology .