A star chart with grid lines
Grid lines were criss-crossing lines that enabled coordinates to be shown on an image or map.
Star charts made use of grid lines. (TOS: "The Corbomite Maneuver")
Memory Alpha
A star chart with grid lines
Grid lines were criss-crossing lines that enabled coordinates to be shown on an image or map.
Star charts made use of grid lines. (TOS: "The Corbomite Maneuver")