UFO observed in Peru in 1957

Summary

A weather observer in Cajamarca, Peru, reported a bright object in the sky on three separate occasions between October and November 1957. The object, described as white and metallic, was seen without binoculars for more than 15 minutes. Observations were made using a Zeiss theodolite, allowing precise azimuth and elevation angles to be recorded. Despite cloudy conditions, the object remained nearly stationary in the sky. The data matched the calculated position of the planet Venus, leading investigators to conclude it was a legitimate astronomical observation. However, the rarity of seeing Venus during the day initially caused some confusion.

The official conclusion was that the object was not a balloon, aircraft, or unknown phenomenon, but the planet Venus. This was supported by astronomical calculations and the fact that Venus was particularly bright during that period, as noted by local media. Although the observation seemed unusual, the instruments used confirmed it was a known celestial body. The case was documented by the U.S. military as part of its file on unidentified aerial phenomena.