The Close Encounter Scale, Explained
Direct answer: The close encounter scale is a simple way to rank how directly a witness interacted with a UFO. It was created by the astronomer J. Allen Hynek. The first three levels are his: a close encounter of the first kind is seeing a UFO up close, the second kind adds physical effects, and the third kind includes beings. Two later levels were added by others: the fourth kind is an abduction, and the fifth kind is deliberate two-way contact.
Who made the scale
J. Allen Hynek was a professional astronomer who spent years reviewing UFO reports for the US Air Force. He wanted a calm, neutral way to describe sightings without arguing about what they were, so in 1972 he proposed a scale based only on how close and how interactive the encounter was. It caught on because it let people compare very different reports using the same simple ladder.
The three original levels
- First kind (CE1): seeing a UFO at close range, usually within about 500 feet, with no lasting physical effect. Just a clear, nearby sighting.
- Second kind (CE2): a close sighting that leaves a physical trace, such as scorched ground, affected plants, interference with car engines or radios, or marks on the witness.
- Third kind (CE3): a close encounter that includes the presence of beings or occupants, seen in or around the object. This is the level the famous film title borrowed.
The two later levels
- Fourth kind (CE4): an abduction, where a witness reports being taken aboard or held against their will. Hynek did not create this level, and some researchers use it cautiously.
- Fifth kind (CE5): deliberate, cooperative two-way contact, often described as being initiated by the witness. It is the most debated level of all.
Why the scale still matters
The scale is useful precisely because it stays neutral. It does not claim anything is alien. It simply tells you how direct the experience was, which helps separate a distant light in the sky from a detailed, up-close report. When you browse documented cases, keeping the ladder in mind makes it easier to judge how strong and how strange each one really is.
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Unlock Lifetime Access $5Frequently asked questions
What is the close encounter scale?
A simple system for ranking how directly a witness interacted with a UFO, from seeing one at a distance up to reported two-way contact. The astronomer J. Allen Hynek created the first three levels in 1972.
What is a close encounter of the first kind?
Seeing a UFO at close range, usually within about 500 feet, with no lasting physical effect. It is simply a clear, nearby sighting.
What is a close encounter of the second kind?
A close sighting that leaves a physical trace, such as scorched ground, affected plants, interference with car engines or radios, or marks on a witness.
What is a close encounter of the third kind?
A close encounter that includes beings or occupants seen in or around the object. The famous film title borrowed this level of the scale.
What are the fourth and fifth kinds?
The fourth kind is an abduction, where a witness reports being taken. The fifth kind is deliberate, cooperative two-way contact. Both were added after Hynek and are more debated.
Who created the close encounter scale?
The astronomer J. Allen Hynek, who reviewed UFO reports for the US Air Force and wanted a neutral way to describe sightings by how close and interactive they were.
Sources and further reading
- J. Allen Hynek's writing on the classification of UFO encounters.
- General reference material on the close-encounter levels and their later additions.
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