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physical object > artifact > device > instrument > optical device > detector > spectrograph > NICMOS

NICMOS comparison table

Subject	has definition	is a kind of
spectrograph	An instrument that records the amount of light in each range of wavelength, that is, in each range of color. In general, each type of astronomical object, such as a star or a galaxy, will emit a characteristic spectrum of light. (See spectrum.)	detector
NICMOS	Near Infrared Camera for Multi-Object Spectrography.	spectrograph

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