Location of Sighting: Frederick, Colorado
Date of Sighting: July 4, 2021
Time of Sighting: 10 PM MDT
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Description: I was sitting outside watching the neighbors across the street shoot off fireworks. I looked up to see his last rocket burst (for a better name). Off the corner of my right eye, I saw a large moving object to the right of the colored sparks. I turned to focus on the movement and saw a large triangular shaped object moving east to north-east at a slow speed directly above me. The altitude was that of a small plane like a Cessna getting ready to land. (I don’t know how to gauge that.) There were no lights and no sound. There was enough reflection on the bottom of the craft from the towns lights to see that is was a dark gray or silver. It took about 15 seconds to go behind my house.