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Name: Holly
Status: other
Grade: other
Location: NV
Country: N/A
Date: N/A


Question:
Why are scientists interested in obtaining accurate measurements of star positions? For what purposes can this information be used?


Replies:
Holly,

If one knows a star's position to a high degree of accuracy, then you can start to measure the distance of the objects surrounding the star, how far away the star and objects are away from us, how fast they are traveling and in which direction. If all of this information is combined then we can predict events (and more importantly watch them closely) that might only happen once in a millenium. It also gives us a 3-D map of the universe, which helps us understand the physics and dynamics of our universe. A lot of the information gathered can help us find new sources of matter and energy and progress our understanding of the universe and the laws that hold it together.

Matt Voss



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