Navigation Console
The navigation console is a console located on the bridge of a starship. The console is designed to monitor and project a vessel's course and velocity. The console also included sensors to determine the position, speed and trajectory of other objects and ships.
On Starfleet vessels, such as the Enterprise NX-01, the helm and navigation consoles were combined into a single station. (Star Trek: Enterprise)
In the 2250s and 2260s, the navigation console was separate from the helm. In addition to coordinating course changes, the navigation console was also designed to allow crewmen to manage weapons firing. (TOS: "The Corbomite Maneuver", "Obsession") By 2266, the function of the navigational console was taken over by the helm. (TOS: "Balance of Terror")
Klingon ships in 2272, such as the IKS Amar also split the duties of navigator and helmsman, seating them at two different consoles. (Star Trek: The Motion Picture)
By the 24th century, the navigation console was once again merged with the helm. (Star Trek: The Next Generation)