Astrogation was science of safely and reliably traversing space in a starship. Throughout galactic history, cartographers and scouts traveled between star systems in search for more reliable and safe hyperspace routes free of dangerous obstacles, marking the beginning of astrogation. When traveling through hyperspace, a navigation computer was required to make precise calculations in order to follow these lanes and avoid crashing into "mass shadows," the gravitational wells surrounding massive celestial bodies such as planets. Often, ships had to navigate by way of hyperspace buoys or stop at waypoints to calculate another hyperspace vector.
- Star Wars: The Force Awakens: The Visual Dictionary
- Star Wars: Aliens of the Galaxy
- Dawn of Rebellion