Uni-Parsec

Within Standard units of spacial measurement by the Imperial Federation of United Worlds in 2368 (and much later by Starfleet in the mid 25th Century.) A Uni-Parcec also known within some in the scientific community as a Mega-Parsec is the unit of distance of both across and between galaxies as reached by Trans Faster Than Light propulsion systems such as Slipstream, Ultra Warp, or InterQuadratal Warp Drive systems.

Unit Measurement Basics
Most Uni-Parcec measurement standards are calculated by the currently known size and ratio of our own local galaxy the Milky Way. According to last scans of the Starfleet Galactic AU Survey and Census our galaxy measured at 100,000 Light years across and 1,000 Light years high. By this calculation an average Uni-Parcec is a distance of well over 12,000,000,000,000,000,000 Miles across, however this is only the distance from 1 edge of the Galaxy to the other so it is more likely that a Uni-Parcecs distance between galaxies is nearly or at double this measurement.