Star map

Star maps, star charts or star-charts were cartographic representations of the positions of stars in the galaxy. They were essential to astrogation.

The Jedi Order maintained many star-charts which showed the location of legendary Force vergences, though by the time of the Galactic Empire, many of the known vergence star-charts were clever fakes. Authentic star-charts that were recovered during the era were thousands of years old, rendering them nearly impossible to interpret.

During the Galactic Civil War, the Empire programmed Bledsoe's disease to carry among symptoms a "window-effect" in the afflicted's eyes (resembling stars in people's eyes), with an ocular scan to retrieve the window-effect's star charts. This was to act as a subtle means of supplying intel on Rebel bases to various Imperials so they could locate and take them out.

Hugo Bartyn managed to delete the coordinates of the Lamaro system from most star-charts.

Text and facts from the “Star map/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.