Project 10073 Record Card and Air Intelligence Information Report: Lake Leelanau, Michigan Sightings

This document is an Air Intelligence Information Report (3C-UFOB-2-56) compiled by the 4602d AISS regarding a series of Unidentified Aerial Phenomena (UAP) sightings reported in the Lake Leelanau, Michigan area between March 26 and April 1, 1956. The report details multiple witness accounts, including students, a farmer, a technical representative, and local residents. Witnesses described seeing a bright, often crescent-shaped object with a 'stem' or 'tail' that changed colors from red to green to white. Some observers reported the object hovering, moving erratically, or fading out. One witness, a farmer, reported that her dogs reacted violently to the object, howling and appearing terrified. Another witness, an engineer, noted the object appeared to move and stop intermittently. The investigation, led by S/Sgt Philip W. Beilfuss, involved interviewing witnesses, consulting with the 752nd AC&W Squadron weather logs and radar data, and seeking expert opinion from Professor Everett R. Phelps of the Wayne University Astronomy Department. The investigation concluded that the sightings were astronomical in nature, specifically caused by the planet Venus, which was at its brightest during that time of year. The report notes that when viewed through binoculars, Venus can appear as a crescent-shaped object, and atmospheric refraction near the horizon likely contributed to the observed color changes and erratic movement. The investigator remarked that many witnesses were prone to exaggeration and that their descriptions of the object's size and shape were inconsistent. The report includes a sketch of the object as described by one of the witnesses and concludes that the information substantiates a finding of 'WAS ASTRONOMICAL'.