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peculiar velocity |
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peculiar velocity [pə′kyül·yər və′läs·əd·ē] (astronomy) Superposed on the systematic rotation of the galaxy are individual motions of the stars; each star moves in a somewhat elliptical orbit and therefore shows a velocity of its own (peculiar velocity) to the local standard of rest, the standard moving in a circular orbit around the galactic center. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Peculiar velocity can either add or subtract from the expansion velocity. |
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