Lunar Longitudes
during UFO Sightings
For all sightings with accurate times and places, this histogram
divides the sky into 24 zones, each of 15 degrees longitude.
Vertical bars increment when the moon is within that zone during a UFO sighting. At 6 and 18 hours, the Moon is at or near the horizon. From about 19 hours through 5 hours, it is usually below the horizon.
Lunar phases and time of day are irrelevant. Only the longitudinal position of the moon at the time and place for each UFO sighting counts. Sightings are fewer when the Moon is high, more numerous when near either horizon.
Optical effects may give rise to misidentifications when the Moon is low on the horizon. Efforts to filter these out will never be entirely successful.