As a backup to the Orbital Positioning System, and as the primary method of navigation in undeveloped star systems, the navigational suite includes a star tracker. This system maintains a sunlock, a continuous bearing to the local system primary, and a number of starlocks, continuous bearings to a number of well-known nearby stars, identified spectrometrically. Again, by correlating these bearings with ephemeris data, a starship’s position can be determined with considerable accuracy.