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National UFO Reporting Center
Sighting Report
Occurred : 2/21/2018 03:45 (Entered as : 02/21/18 3:45)
Reported: 2/21/2018 2:16:30 PM 14:16
Posted: 2/22/2018
Location: Big Horn, WY
Shape: Flash
Duration:5 minutes
Big Horn Flash along mountains

On February 21st 2018, my fiancé went outside at approximately 3:45 AM to let the dog out. He stayed outside for about 5 minutes, observing the night sky. He then spotted a flash of light and movement that was not a star or a satellite. He woke me up to come watch the object. It was bitter cold and clear weather. I watched the object flash and move, leaving a bit of tracer lights.

I observed it moving vertically and horizontally. It would disappear and then reappear with a flash of a light. It was not an aircraft, not a star and not a satellite.

My fiancé told me how far the object had moved during his observation. It transversed about a third to one half of the night sky from south to north parallel to the Big Horn Mountains.