Charge-coupled Devices
Charge-coupled devices (CCDs) are electronic devices used for the detection and measurement of light in space and astronautical engineering. They are composed of an array of tiny capacitors that can store electrical charge. When light strikes the surface of the device, it generates electrons that are then collected by the capacitors. The amount of charge stored in each capacitor is proportional to the intensity of the light that struck it. CCDs are commonly used in space telescopes and other astronomical instruments to capture high-resolution images of celestial objects. They are also used in spacecraft navigation systems to determine the position and orientation of the spacecraft relative to stars or other reference points.
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