A charge-coupled device (CCD) is a device that records the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.
The Lagoon Nebula (catalogued as Messier 8 or M8, and as NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as a H II region.
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