Persistent Signal Catalog · Class I
The Wow! signal
A strong, narrow-band burst lasting about 72 seconds, recorded near the hydrogen line in the direction of Sagittarius. Never repeated despite decades of follow-up. One of the most-studied unexplained detections in the record.
A strong, narrow-band burst lasting about 72 seconds, recorded near the hydrogen line in the direction of Sagittarius. Never repeated despite decades of follow-up. One of the most-studied unexplained detections in the record.
Public packet
- catalog abstract
- classification rationale
- public source links
- J2000 plotting coordinates
Review controls
- Coordinate source
- Big Ear Radio Observatory, Ohio State University public coordinates
- Uncertainty
- Published or catalogued coordinate, rounded for public display
- Release state
- External literature case retained for comparison
- Marker use
- Big Ear beam-region approximation
Processing notes
- source publication review
- coordinate normalization for Night Watch where available
- classification against FAL behavioral taxonomy
- retention as a public comparison case
Ordinary-source checks
- source interpretation retained from the cited literature
- public summary avoids unsupported origin claims
- comparison use is behavioral rather than evidentiary
Release limits
- interpretation remains with the cited source record
- FAL classification is behavioral and does not replace the original literature
- coordinates are shown only when stable public values are available