References & Contributors ( Sources) This article has metadata. Other races, using the orbital distance of their home world and different definitions of an arc second would derive different values for a parsec, but these wouldn't be Imperial parsecs.Because of this, 'parsec' has become the standard word used for this distance within the Imperium.By coincidence this distance is very close to the maximum distance a Jump-1 drive can jump.The concept was adopted following the Solomani Rim War to avoid the use of specifically Terranocentric metrics. This is equivalent to a distance of 198,738 Astronomical Units, although for convenience and simplicity this value is generally rounded to 200,000 AU.
Modern Imperial usage bases the parsec on the value of pi times light-years (one parsec is equal to 3.142 light-years). The Solomani define one parsec to be the distance from Terra to a star that has a parallax of 1 arcsecond, and equals 3.261 light-years or 206,265 Astronomical Units. The Imperial world of Regina lies approximately one parsec from the non-aligned Ruie system. The Deshi is a Vilani equivalent to the parsec.Other cultures have different values for a parsec: The standard imperial abbreviation is pc.A parsec is based on a baseline of 1 Astronomical Unit.It is one of the oldest Terran methods for measuring the distances to stars. The name parsec stands for "parallax of one second of arc", and allows calculating distances to nearby stars using simple observation and trigonometric parallax (apparent motion of an object due to change of position of the observer). Please refer to the following AAB Library Data for more information:
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