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{%type%} Definitions

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Short "hint"

n. - Optical device used to follow the path of a celestial body and reflect its light into a telescope.

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Usage examples (8)
  • The "coelostat," in the form given to it by Professor Turner, has proved an invaluable adjunct to eclipse-equipments.
  • He kept his face glued to the eyeshade of the coelostat.
  • The problem appeared to be the coelostat, a mirror attached to the large astrographic telescope.
  • One of them is the coelostat, the instrument used in telescopes to keep the images of the stars in place for arbitrarily long periods of exposures.
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