Computer Science
Scientific paper
Apr 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mercu...7...34h&link_type=abstract
Mercury, vol. 7, Mar.-Apr. 1978, p. 34-37.
Computer Science
1
Orbit Calculation, Planetary Systems, Solar System, Stellar Gravitation, Binary Stars, Companion Stars, Computerized Simulation, Extraterrestrial Life, Planetary Evolution, Planetary Orbits, Planetary Radiation, Project Seti
Scientific paper
In connection with a search for extraterrestrial intelligence and with projects related to interstellar space flight and exploration, questions arise concerning the locations of hospitable planets. The reported investigation is related to a study regarding the possibility to find such planets in multiple star systems. An analysis is conducted regarding the stability of planetary orbits in a multiple star. By stability, it is meant that the basic parameters describing the size and shape of the orbit do not change greatly over long periods of time. In particular, the average separation of the stars should not grow or decay with time. Computer experiments have been carried out for the case of a planet in a binary star. It is found that extensive stability regions exist. The results of the computer experiments are applied to the stellar systems in the vicinity of the sun. Systems which could contain habitable planets include Alpha Centauri, 61 Cygni, 70 Ophiuchi, and Eta Cassiopeia.
Harrington B. J.
Harrington Robert S.
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