Alpha Centauri

:This article is about the star system. For the computer game, see Sid Meier's Alpha Centauri.

Possibility of planet formation

Computer models of planetary formation suggest that terrestrial planets would be able to form close to both Alpha Centauri A and B, but that gas giant planets similar to our Jupiter and Saturn would not be able to form because of the binary stars' gravitational effects. Given the similarities in star type, age and stability of the orbits it has been suggested that this solar system may hold one of the best possibilities for extraterrestrial life. However, some astronomers have speculated that any terrestrial planets in the Alpha Centauri system may be dry because it is believed that Jupiter and Saturn were crucial at directing comets into the inner solar system and providing the inner planets with a source of water. This would not be a problem, however, if Alpha Centauri B happened to play a similar role.

Related Topics:
Terrestrial planet - Gas giant - Jupiter - Saturn - Extraterrestrial life - Comet - Water

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