Look up: Parsec

1. parsec
   A large distance often used in astronomy, it is equal to 3.26 light years, or 3.1 × 1018 cm (see scientific notation).
   Found on http://skyview.gsfc.nasa.gov/help/dictio
   
   
2. Parsec
   A parsec is an astronomical unit of distance equivalent to 3.2616 light years.
   Found on http://fas.org/news/reference/probert/A8
   
   
3. parsec
   [n] - a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. Parsec
   A unit for expressing large distances. It is the distance at which a star would have a parallax of one arc second, equal to 3.2616 light years, 206,265 astronomical units (AU) or 30.857 * 10E12 km.
   Found on http://www.exeterastro.co.uk/glossary.ht
   
   
5. PARSEC
   Extensible language with PL/I-like syntax, derived from PROTEUS. "PARSEC User's Manual", Bolt Beranek & Newman (Dec 1972).
   Found on
   
   
6. parsec
   the radius of a circle on whose circumference 1 arc-second corresponds to 1 AU Category: The cosmos
   Found on http://www.mijnwoordenboek.nl/definition
   
   
7. parsec
   secpar noun a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
8. Parsec
   The `parsec` (symbol pc) is a unit of length used in astronomy. The length of the parsec is based on the method of trigonometric parallax, one of the oldest methods for measuring the distances to stars. The name `parsec` stands for ``par`allax of one `sec`ond of arc`, and one parsec is defined to be the distance from the Earth to a star that has a parallax of 1 arcsecond. The actual length of a parsec is approximately 3.086×1016 m, or about 3.2...
   Found on http://en.wikipedia.org/wiki/Parsec
   
   
9. Parsec
   The `parsec` (symbol pc) is a unit of length used in astronomy. The length of the parsec is based on the method of trigonometric parallax, one of the oldest methods for measuring the distances to stars. The name `parsec` stands for ``par`allax of one `sec`ond of arc`, and one parsec is defined to be the distance from the Earth to a star that has a parallax of 1 arcsecond. The actual length of a parsec is approximately 3.086×1016 m, or about 3.2...
   Found on http://en.wikipedia.org/wiki/Parsec
   
   
10. PARSEC
    PARSEC is a package designed to perform electronic structure calculations of solids and molecules using density functional theory (DFT). The acronym stands for `Pseudopotential Algorithm for Real-Space Electronic Calculations`. It solves the Kohn-Sham equations in real space, without the use of explicit basis sets. One of the strengths of this code is that it handles non-periodic boundary conditions in a natural way, without the use of super-cel...
    Found on http://en.wikipedia.org/wiki/PARSEC
    
    
11. parsec
    unit for expressing distances to stars and galaxies, used by professional astronomers. It represents the distance at which the radius of the Earth`s ... [3 related articles]
    Found on http://www.britannica.com/eb/a-z/p/22
    
    
12. parsec
    (pc) An astronomical unit of length, equal to the distance at which the radius of the Earth's orbit subtends an angle of one arcsecond. The name is a contraction of "parallax-second." 1 parsec = 3.259 light-years = 206,265 AU = 30.83 trillion km = 19.16 trillion miles. ...
    Found on http://www.daviddarling.info/encyclopedi