UFO seen in Rhinelander Wisconsin in 1957

Summary

A night watchman in Rhinelander, Wisconsin, reported a white object the size of a basketball on January 19, 1957. The object was observed for 15 to 20 seconds, moving south at about 20 degrees above the horizon. No photos were taken and the speed was not reported, making evaluation difficult. Investigators concluded there was not enough information to determine the object's nature. A meteor was considered due to the duration, but it was not confirmed.