In ufology, a close encounter is an event in which a person witnesses an unidentified flying object. This terminology and the system of classification behind it were first suggested in astronomer and UFO researcher J. Allen Hynek's 1972 book The UFO Experience: A Scientific Inquiry. Categories beyond Hynek's original three have been added by others but have not gained universal acceptance, mainly because they lack the scientific rigor that Hynek aimed to bring to ufology.
Sightings more than 500 feet (150 m) from the witness are classified as "Daylight Discs," "Nocturnal Lights," or "Radar/Visual Reports." Sightings within about 500 feet are subclassified as various types of "close encounters." Hynek and others argued that a claimed close encounter must occur within about 500 feet to greatly reduce or eliminate the possibility of misidentifying conventional aircraft or other known phenomena.
Hynek's scale became well known after being referenced in a 1977 film, Close Encounters of the Third Kind, which is named after the third level of the scale. Posters for the film featured the three levels of the scale, and Hynek himself makes a cameo appearance near the end of the film.
Lights in the night sky.
UFOs seen in the daytime, generally having discoidal or oval shapes.
UFO reports that have radar confirmation. These seem to offer harder evidence that the objects are real, although radar propagation can often be unreliable.
Close Encounters of the First KindEdit
Visual sightings of an unidentified flying object, seemingly less than 500 feet away, that show an appreciable angular extension and considerable detail.
Close Encounters of the Second KindEdit
A UFO event in which a physical effect is alleged. This can be interference in the functioning of a vehicle or electronic device; animals reacting; a physiological effect such as paralysis or heat and discomfort in the witness; or some physical trace like impressions in the ground, scorched or otherwise affected vegetation, or a chemical trace.
Close Encounters of the Third KindEdit
UFO encounters in which an animated creature is present. These include humanoids, robots, and humans who seem to be occupants or pilots of a UFO.
The UFO researcher Ted Bloecher proposed six subtypes for the close encounters of the third kind in Hynek's scale.
- A : An entity is observed only inside the UFO.
- B : An entity is observed inside and outside the UFO.
- C : An entity is observed near to a UFO, but not going in or out.
- D : An entity is observed. No UFOs are seen by the observer, but UFO activity has been reported in the area at about the same time.
- E : An entity is observed, but no UFOs are seen and no UFO activity has been reported in the area at that time.
- F : No entity or UFOs are observed, but the subject experiences some kind of "intelligent communication".
Extensions of Hynek's scaleEdit
Close Encounters of the Fourth KindEdit
Hynek's erstwhile associate Jacques Vallee argued in the Journal of Scientific Exploration that the "Fourth Kind" should refer to "cases when witnesses experienced a transformation of their sense of reality", so as to also include non-abduction cases where absurd, hallucinatory or dreamlike events are associated with UFO encounters.
The film The Fourth Kind makes reference to this category.
Close Encounters of the Fifth KindEdit
A UFO event that involves direct communication between aliens and humans. This type of close encounter was named by Steven M. Greer's CSETI group and is described as bilateral contact experiences through conscious, voluntary, and proactive human-initiated cooperative communication with extraterrestrial intelligence.
Close Encounters of the Sixth KindEdit
Close Encounters of the Seventh KindEdit
The creation of a human/alien hybrid, either by sexual reproduction or by artificial scientific methods.
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- Hynek, 1972, 1998, p. 6
- Hynek, 1972, 1998, p. 20; see also the program UFO Hunters episode "Alien Contact" aired on 23 April 2008 on the History Channel.
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