Difference between revisions of "Parsec"
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| − | + | A [http://en.wikipedia.org/wiki/Parsec parsec] is about 3.26163626 light-years, or a bit over thirty trillion kilometers. It represents a '''par'''allax of one arc'''sec'''ond, as seen from the orbit of [[Earth]]. It is used over light-year because the definition of 'year' has become increasingly convoluted. | |
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Latest revision as of 00:09, 11 April 2007
A parsec is about 3.26163626 light-years, or a bit over thirty trillion kilometers. It represents a parallax of one arcsecond, as seen from the orbit of Earth. It is used over light-year because the definition of 'year' has become increasingly convoluted.
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