UFO reported by a meteorologist at the Lowell Observatpry from Flagstaff newspaper on May 27, 1950
The object was observed between 12:15 and 12:20pm on Saturday, May 20, from the grounds of the observatory. the object presented a bright visible disc to the naked eye and passed moderately rapidly in front of a fractocumulus cloud in the northwest. Upon passng in front of the cloud its appearance changed from that of a bright object to a dark object, due to the change in contrast. No engine noise was heard, nor was there any exhaust.