BAGNOLET (93) 10.05.2011

A witness regularly sees a point of light move across the sky from home, growing then shrinking before disappearing at the horizon. The home lies nearly along the extended centerline of an Orly runway. In north winds, the source explains that aircraft depart toward the witness. Their powerful, directional forward lights overwhelm the much weaker flashing red lights. As an aircraft turns away from the line of sight, received light drops sharply. Repeated sightings support this explanation, and the witness could check whether they occur in northerly winds. GEIPAN classifies the case B: probable aircraft departing Orly.