gregorian telescope   (TTS Sound)

The gregorian_telescope has 1 Senses.

• cassegrainian telescope, gregorian telescope
• a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror
• 放物面の主鏡と双曲面の副鏡を備えている反射望遠鏡