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physical object > artifact > device > instrument > optical device > detector > spectrograph > Fourier Transform Spectrometer

Fourier Transform Spectrometer comparison table

Subject	is a kind of	has acronym	has definition
spectrograph	detector		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.)
Fourier Transform Spectrometer	spectrograph	FTS

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