Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jbis...34..239s&link_type=abstract
British Interplanetary Society, Journal (Interstellar Studies), vol. 34, June 1981, p. 239-246.
Astronomy and Astrophysics
Astronomy
Extrasolar Planets, Extraterrestrial Intelligence, Interstellar Communication, Radio Astronomy, Binary Stars, Diagrams, Distance, Milky Way Galaxy, Stellar Motions
Scientific paper
If during a visit to an inhabited but undeveloped planet orbiting a distant star, it were decided to make information available at a later, technically advanced, stage of its civilization, one way of doing this would be to use a radio transmission from earth. The transmission could be made so low in power that it would be likely to be received by the inhabitants only after details of its wavelength and direction had been supplied, for example, by a local transmitter installed on a nearby moon. This paper examines the possibility of making information available in this way and considers how the direction of the radio transmission from earth could be indicated by the use of a star distance diagram.
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