Assertion: newtonian telescope's mirror | /r/HasAspect | parabolic shape
Facets:
Source sentences:
text: The objective mirror has a parabolic shape to easily capture light rays and direct them to your eyepiece.
text: the reflector telescope’s mirror has a parabolic shape, The parabolic shaped mirror focusses the parallel lights rays to a single point, All modern research telescopes and large amateur ones are of the reflector type because of its advantages over the refractor telescope.