The Hynek Classification System

A system developed by Dr. J. Allen Hynek which categorizes the various types of UFO sightings. The categories are as follows:

Close Encounter of the First kind:

A UFO in close proximity to a witness

Close Encounter of the Second kind:

A UFO leaves permanent or semi-permanent physical markings behind (such as burns on the ground or radiation traces).

Close Encounter of the Third kind:

A Close Encounter of the First or Second Kind where extra terrestrials are also seen.

Close Encounter of the Fourth kind:

A UFO’s occupants abduct an individual. Abductees’ experience severe reality distortion such as memory lapse, 'post abduction trauma' symptoms such as fear and anxiety.

Close Encounter of the Fifth kind:

Communication occurs between a person and an extra terrestrial.