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Alpha Centauri System
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<img style= "" src="http://vignette1.wikia.nocookie.net/pandorapedia/images/8/89/Adf507464ec8.jpg/revision/latest/scale to width down/310?cb=20121213163217&amp;path prefix=en" title="Adf507464ec8.jpg (25 KB)" class= "thumbimage" alt= "Adf507464ec8" data image name="Adf507464ec8.jpg" data image key="Adf507464ec8.jpg">
The Alpha Centauri system .
Stars: A ( In the center ) and Polyethem (In the square )
<img style= "" src="http://vignette1.wikia.nocookie.net/pandorapedia/images/3/3c/92aa0f4d3749.jpg/revision/latest/scale to width down/310?cb=20121213163423&amp;path prefix=en "title=" Pandora (62 KB) "class=" thumbimage " alt="Pandora "data image name=" 92aa0f4d3749.jpg" data image key="92aa0f4d3749.jpg">
Pandora
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Alpha Centauri is the closest star system to Earth that man has managed to reach The brightest star in the constellation Centauri is actually three stars orbiting each other, and two stars - the largest, Alpha Centauri A and the smaller Alpha Centauri B, which has its own planetary system - are stars comparable in size and luminosity to the Sun (ACA is 20% larger and glows yellow, and ACB is 15% smaller and 500 K colder, more orange), while the third is the red dwarf Alpha Centauri C, also called Proxima Centauri is five times smaller and twice as cold as our sun
So far, Alpha Centauri is the only system in the galaxy where life forms similar to Earth's have been found, which makes this system doubly interesting.
The astronomical coordinates of the Centauri star system are as follows: right ascension - 14 hours 39.6 minutes; deviation 6050'.
A and B Centauri are located at a distance of about 4.37 light years (277,600 astronomical units, and one astronomical unit (AU) is about 149597870 kilometers - the average distance from the Earth to the Sun) from our Solar System, and Alpha Centauri C (the name "Proxima" it deserves because it is closest to the Earth) is about 0.15 light years closer.
A and B Centauri have highly elongated elliptical orbits (e = 0.52) around the common center of mass, and the distance between them varies from 11.2 to 35.6 astronomical units; they complete a full circle in about eighteen years.
The greatest convergence of these stars could be observed in 1955, 2035, 2115, and the next one will come only in 2195.
Alpha Centauri C, located at a distance of more than 10,000 astronomical units from the other two stars, has a very weak gravitational connection with them, and it takes about a million years to complete a complete revolution around the center of mass.
It is likely that the impact of the nearest star systems in the future will still change the orbit of the red dwarf so much that it will forever lose contact with its native system and go into outer space.
Early studies using telescopes and unmanned vehicles have shown that the Alpha Centauri system is full of surprises.
Earth's observatories managed to detect three gas giants orbiting in the Alpha Centauri B system, but it took another twenty years to discover five smaller rocky planets.
The planets are named similarly to the planets of the Solar system, only the ancient Roman names are replaced by ancient Greek ones: Vulcan (a semi molten planet, the closest to the star without an analogue), Hermes (Mercury), Aphrodite (Venus), Geya (Earth), Ares (Mars), Zeus (Jupiter), Cronus (Saturn), Poseidon (Neptune, since the planet occupies an equivalent orbit, and "Uranus" is absent in this system).
The remoteness of the last three planets gas giants from the "native" star and, as a result, the proximity to the neighboring one, create conditions for the formation of extremely unstable orbits and the almost complete absence of satellites, and scientists speculate that Poseidon and Kronos may simply collide in the very near future.
Fortunately, everything is calm in the neighboring system, Alpha Centauri A, so far, and three gas giants discovered from Earth with the help of a recently launched System of coorbital telescopic interferometers - Ocean, Kay and Kri - are calmly orbiting their luminary, and if the Ocean is located too close to the luminary, and Kri is too far away, then the second giant - Kay, renamed Polyphemus - is one of the most remarkable objects of the entire system, thanks to its satellites; on several of them, with a diameter of over 6.437 kilometers, clouds and oceans were seen.
Remote controlled probes have detected a nitrogen oxygen atmosphere on the fifth and sixth satellites; this type of atmosphere can only be created by carbon based life forms.
Despite the fact that the other satellites have large reserves of surface water, their rarefied atmosphere mostly consists of nitrogen and carbon dioxide, which indicates the absence of life, and among the fourteen satellites so far, only one - Pandora - has found higher forms of life, which became the greatest of the space discoveries of the Earth of the XXII century.
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