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New Data on Star Movement Received
23.11.2010 13:03
New Data on Star Movement Received
The Milky Way

Russian researchers from Rostov-on-Don have modeled movements of stars, born in one stellar cluster, and revealed that star distribution has become much less dense, since the Sun was born 4.6 billion years ago.
      Common hypothesis states that the Sun had formed in an open star cluster, containing several thousand other stars. Scientists from the Netherlands showed that if initial cluster had contained about 1 000 stars, then from 10 to 60 related stars could have been found less than 100 parsec away from the Sun. Next generation of telescopes is able to locate at least one object from this group.
      Russian researchers have repeated calculations of their colleagues, but included spiral density waves, responsible for formation of spiral branches of the Milky Way, in their model. The model gave start movement trajectories, which were completely different from what Dutch astronomers had obtained.
      New data show that only a few relatives could have remained close to the Sun, and finding these stars is next to impossible.
      Source: Science News
Author: Anna Kizilova


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