Lights in Plouarzel identified as Venus and Arcturus, 1983

Summary

In March 1983, several witnesses in Plouarzel believed a luminous phenomenon was following their cars. GEIPAN's re-analysis concluded they had been watching Venus and Arcturus from shifting angles as they drove. Their own vehicle movement created the illusion of a tracking object, reinforced by the excitement of family interaction inside the car. The astronomical explanation resolves the case clearly.