The Close Encounter Scale is a method for classifying UFO sighting reports, developed by astronomer J. Allen Hynek.
The Close Encounter Scale is a method for classifying reports of UFOs observed at close range. For Hynek, a close encounter typically means a sighting within 200 meters (about 650 feet). The original scale included three levels: CE-I for a visual sighting, CE-II for cases reporting physical effects, and CE-III for a sighting where a living entity was allegedly present.
Typically, a UFO sighting from a distance of less than 200 meters (about 650 feet).
CE-I describes a visual sighting, CE-II describes a report of physical effects, and CE-III describes a sighting where a living entity was allegedly present.
No. Later writers added them; they refer to claims of abduction or human-initiated contact.
No. It is primarily used in UFO literature and popular culture, and there is no confirmed evidence that the encounters it describes are related to extraterrestrials.