Sunday, December 12, 2010
The first extrasolar planet found to have five stars.
<P> World Scientific reports [tech.] News: American astronomer 6 announced that they found around a star constellation Cancer, the first five planets around its operation. .This is outside our solar system found to date in the first 5 planetary system, the star is also known planets outside our solar system has the largest number of stars. .</ P> <P> San Francisco State University, University of California, Berkeley, astronomers and other institutions, said, 这颗 code-named "55 Cancri" star in the constellation Cancer, 41 light years from Earth, and the quality and age of the Sun .roughly equal. .Operation of the newly discovered around it the quality of the 5th planet is about 45 times the Earth, composition and appearance similar to Saturn. .</ P> <P> newly discovered planet from the "55 Cancri" about 117 million kilometers, slightly more than the distance at close. .It is orbiting around their parent star about 260 days. .From the parent star's position from the point of view, the planet in the "livable area", that is suitable temperature, liquid water can accumulate can guarantee a solid surface. .</ P> <P> astronomers said they were stars on the 2000 long-term observations, the use of "Doppler" new planet discovered. ."Doppler" is commonly used to find extrasolar planets means that the idea of "star - planetary" system of mutual gravitational displacement under the stars of the swing to indirect observation planet. .</ P> <P> the above observations in the United States, "Astrophysical Journal," the official publication. .In observational studies, said astronomer Geoff Marcy, the new discovery is the search for extrasolar planets, but research a small step, "Our next goal is to find and Earth-like extrasolar planets." .</ P> <P> hot topic: paid annual leave can be a dream come true do you find opportunities to teach 14 strokes identify gaps in the market orders for why Wal-Mart China a good start into a quandary? Rich marriage party, why not show his true face? .Bilingual kindergarten, cart before the horse, Yamiaozhuchang! .Five fatal business mistakes <Times "Why do the world's man of the two elections of Deng Xiaoping Beijing wonderful way to open the car Bacheng private diet fat free sandwich layer of trouble to resolve common property problem," Business Week "50 best companies list in Asia! .Petite but strong woman of wealth in Chongqing legendary Japanese brand to choose endorsers? Egyptian Pharaoh Tutankhamun revealed truth to the Indian girls having four arms and four legs Huawei: a pack of wolves shook the international dance world politics .11 Why Women Alone car shivering cold start dumplings practices around the world need to be cautious commercial real estate investment </ P> </ p>.
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