Difference between revisions of "Parsec"
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A '''parsec''' (short for '''parallax second''') is | A '''parsec''' (short for '''parallax second''') is a unit of distance that is equivalent to 3.26 light-years. According to Merriam-Webster, it is "the distance to an object having a [http://www.merriam-webster.com/dictionary/parallax parallax] of one second as seen from points separated by one [[astronomical unit]]". | ||
[[Category: Science]] | [[Category: Science]] | ||
Revision as of 19:54, 21 February 2008
A parsec (short for parallax second) is a unit of distance that is equivalent to 3.26 light-years. According to Merriam-Webster, it is "the distance to an object having a parallax of one second as seen from points separated by one astronomical unit".