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physical object > artifact > device > instrument > optical device > detector > imager > integrating detector > charge-coupled device > Four-shooter

Four-shooter comparison table

Subject	has definition	is a kind of
charge-coupled device	Highly sensitive photoelectric devices that can electronically record the intensity and point of arrival of tiny amounts of light. CCDs are placed at the receiving end of telescopes, to "take pictures" of very faint astronomical objects; they have almost completely replaced photographic plates.	integrating detector
Four-shooter	An astronomical instrument comprised of four highly sensitive photoelectric cells (CCDs). The four-shooter is placed at the end of a telescope and used to electronically record incoming light.	charge-coupled device

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