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Home Q & A Board Science-Related Homework Help Physics
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barry barry
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Posts: 11630
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11 years ago
How is distance determined to the nearest stars?  How far out can this technique be applied?  How many stars can be measured in this way?
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11 years ago
"The parallax method has been most accurately applied by orbiting observatories. The Hipparcos satellite, in the 1990s, was able to measure distances to 300 light years with 10% or better accuracy, and provide some distance estimates out to 1000 light years. A couple of missions currently under development will improve on Hipparcos's precision by a factor of 100 or better, extending reliable measurements out to at least 30,000 light years."
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