Arecibo message
E9748
The Arecibo message is a 1974 interstellar radio transmission sent from the Arecibo Observatory toward a distant star cluster, encoding basic information about humanity and Earth in a binary pictorial format.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Arecibo message canonical | 6 |
| Arecibo interstellar radio message | 1 |
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
SETI experiment
ⓘ
interstellar radio message ⓘ radio transmission ⓘ |
| bitLength | 1679 bits ⓘ |
| bitLengthFactorization | 23 × 73 ⓘ |
| columns | 73 ⓘ |
| contains |
approximate number of DNA nucleotides in human genome
ⓘ
atomic numbers of key elements in DNA ⓘ average human height ⓘ diagram of Arecibo radio telescope ⓘ diagram of Solar System ⓘ formulas for sugars and bases in DNA nucleotides ⓘ graphic representation of DNA double helix ⓘ graphic representation of a human figure ⓘ human population of Earth in 1974 ⓘ indication of Earth as origin of message ⓘ numbers 1 to 10 in binary ⓘ size of Arecibo radio telescope ⓘ |
| dateSent | 1974-11-16 ⓘ |
| designedBy |
Carl Sagan
ⓘ
Frank Drake ⓘ others at Arecibo Observatory ⓘ |
| distanceToTarget | about 25,000 light-years ⓘ |
| encoding | binary ⓘ |
| followedBy |
A Message From Earth
ⓘ
Cosmic Call messages ⓘ Teen Age Message ⓘ |
| format | pictorial message ⓘ |
| intendedRecipient | hypothetical extraterrestrial intelligence ⓘ |
| language | mathematical and scientific symbolism ⓘ |
| modulationType | binary phase-shift keying ⓘ |
| name | Arecibo message self-link ⓘ |
| notableFeature |
first widely known digital interstellar message
ⓘ
uses semiprime bit length to enforce two-dimensional decoding ⓘ |
| purpose |
demonstrate capabilities of Arecibo radio telescope
ⓘ
symbolic attempt to communicate with extraterrestrial intelligence ⓘ |
| relatedTo |
Arecibo Observatory
ⓘ
SETI ⓘ interstellar communication ⓘ |
| rows | 23 ⓘ |
| sentBy |
Frank Drake
ⓘ
National Astronomy and Ionosphere Center ⓘ |
| sentFrom |
Arecibo Observatory
ⓘ
Earth ⓘ Puerto Rico ⓘ |
| target | globular star cluster M13 ⓘ |
| targetConstellation |
Heracles
ⓘ
surface form:
Hercules
|
| transmissionDuration | about 3 minutes ⓘ |
| transmissionFrequency | 2380 MHz ⓘ |
| transmissionPower | about 1000 kW ⓘ |
| yearSent | 1974 ⓘ |
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Arecibo interstellar radio message