Sighting reinterpreted as the Moon at Vitteaux

Summary

On May 30, 1977, two people in a car spotted a reddish luminous ball at low altitude over Vitteaux. It moved slowly from south to north, silently, for five to six minutes. The case was initially considered solid—two witnesses, one a police officer. However, a later reexamination with new tools concluded the phenomenon was the Moon on the horizon, seen intermittently through clouds. Neither witness mentioned the Moon, likely due to fatigue and nighttime driving conditions.

The reclassification to category A does not question the observers' honesty but their interpretation. The case illustrates how well-known astronomical phenomena can be mistaken for unidentified objects under low visibility and fatigue.