Faint Object Spectrograph
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The Faint Object Spectrograph (FOS) was a spectrograph installed on the Hubble Space Telescope. In 1997 it was replaced by the Space Telescope Imaging Spectrograph.
The Faint Object Spectrograph (FOS) was a spectrograph installed on the Hubble Space Telescope. In 1997 it was replaced by the Space Telescope Imaging Spectrograph.