a method for contactlessly determining the temperature of a moving object having an unknown degree of emission , especially a metal wire conveyed along its longitudinal axis , is described : the object is guided through at least one radiation source emitting thermal radiation , wherein the object is mostly or completely surrounded by the at least one radiation source . with at least one radiation detector , a spatially - resolved thermal radiation measurement is performed in a region through which the object passes when it is guided through the radiation source . the temperature of the moving object is determined on the basis of the spatially - resolved thermal radiation measurement . a corresponding device is also described .