UFO Observation, 13 Dec 66 — Miles City, Montana

This document contains a collection of records regarding a UFO sighting reported by two civilians in Miles City, Montana, on December 13, 1966. The primary witness, a postman, observed a star-like object for approximately one hour. He described the object as having a flat, cone-like shape, resembling two mixing bowls stacked on top of each other, with a green top and a red bottom. The object was reported to be constantly blinking or flashing red and green lights and moving from west to east. A second witness, a school teacher, also observed the object from an automobile. The Air Force initiated an investigation under Project 100/3, requesting further details via FTD Form 164. Following an analysis of the reported data, the Air Force concluded that the witnesses had observed the star Sirius, which was rising at an azimuth of 112 degrees at the time of the observation. The Air Force explained the perceived movement and flashing lights as a result of atmospheric refraction, noting that when stars are viewed low on the horizon, the atmosphere acts as a prism. The witness eventually concurred with this assessment, noting in his follow-up questionnaire that he had seen the object again and now believed it to be a star.