Abstract: The invention provides a system for determining the spatial position of a moving object and for guiding its movement, which system comprises a triangular arrangement of three light sources attached to the moving object and facing guidance device, electrooptical sensing device comprising an area imaging device and an image processing computer located at a position facing the moving object, there being provided a guidance computer connected to the image processing computer, and radio-communication device for the exchange of signals from and to said moving object. As an alternative the three light sources can be provided at the ground station and the other components of the system being attached to the moving object, there being provided communication device between said station and object. The system is of special value for guiding manned and unmanned aircraft.