Engelsk substantiv: Gregorian telescope | |||
1. | Gregorian telescope (om gjenstand) 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 | ||
Ord med samme betydning (synonymer) | Cassegrainian telescope | ||
Mindre spesifikke uttrykk | reflecting telescope, reflector | ||