PERIPHERY MONITORING DEVICE

A periphery monitoring device includes: an acquisition section (401) acquiring a steering angle of a vehicle (1); an image acquisition section (400) acquiring a captured image from an image capturing section (15) that captures an image of a periphery of the vehicle; a detection section (402) acquiring detection information of an object (O) around the vehicle; and a control section (403) causing a display section (8) to display a synthesized image including a vehicle image (G1) showing the vehicle and a periphery image (G2) showing the periphery of the vehicle based on the captured image. When the object is detected on a course of the vehicle traveling at the steering angle by a predetermined distance, the control section causes a virtual vehicle image (G5) to be displayed in the synthesized image to be superimposed on a course to the object with a position of the vehicle as a reference.