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Multiple realities
(covers information from several alternate timelines)

An astrogator was a device used for astrogation: navigation through space. Typically, they were located between the helm and navigation stations at the forward section of the bridge.

The astrogator on the alternate USS Enterprise was an all-digital display which lacked a manual dial. (Star Trek)

On Constitution-class starships, the helmsman could change the ship's heading simply by turning the dial upon the face of the astrogator. (TOS: "And the Children Shall Lead") In 2266, Charles Evans adjusted the astrogator aboard the USS Enterprise while manning the helm. (TOS: "Charlie X") By the 2270s, Constitution II-class used graphic screens, which previously appeared aboard Kelvin-type starships in the 2230s. (Star Trek: The Motion Picture, Star Trek)

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Background information[]

USS Defiant astrogator

Production photo of the USS Defiant's astrogator

Based on the basic function of this device, originating from generic science fiction terminology – aside from the occupational position of astrogation plotter, or Kirk's reference to the automatic astrogation station located on Gamma II – the device used to plot courses on the original Enterprise was never "officially" described as an astrogator in any Star Trek episode or film.

The term was first associated with the device in Franz Joseph's Star Fleet Technical Manual [page number?edit], and eventually "unofficially" described as the astrogator in USS Enterprise NCC-1701 technical briefing that appeared in the Star Trek: The Magazine Volume 1, Issue 3. [1]

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