Parsec - Law Dictionary Search Results
Home Dictionary Name: parsecparsec
A unit of length used in describing astronomical distances equal to 326 light years or 3086 x 1013 km Abbreviated pc The derived units of kiloparsec kpc 1000 parsecs and megaparsec mpc one million parsecs are often found in discussion of astronomical distances...
parallax second
An annual parallax of one second of an arc applied to celestial objects outside the solar system It is used to measure the distance of an astronomical object from the Earth A star which has an annual parallax of one second of an arc is considered to be one parsec 326 light years distant from the earth See parsec in the vocabulary...
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