The picture, taken in Nelson ledges state park in Garrettsville, Nelson, Ohio, USA, has a strange torpedo-shaped object in the top-left corner above a lake and trees.
Investigators at the US-based Mutual UFO Network (MUFON) were sent the image for analysis.
MUFON is the world's largest organisation dedicated to UFO and alien research and it keeps a global database of sightings, many of which are investigated.
A son of the man, who has not been named by MUFON, sent in the image with a report.
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