How Astronavigation Prototype Works

Ed Collen sketched the operation of the device on this index card. It showed how the images of a star field and a globe were superimposed over what the astronaut observed through the capsule’s window. 

Caption:
This sketch shows how the images of a star field and a globe were superimposed over what the astronaut observed through the window.
Type: Illustration
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution
Origin: National Air and Space Museum, Smithsonian Institution
TMS A19930078002_diagram_cardcp09
Navigation Methods
 
This sketch shows how the images of a star field and a globe were superimposed over what the astronaut observed through the window.