Assertion: reflecting telescope's mirror | /r/CapableOf | create real image
Facets:
value: in the gregorian design
type: LOCATION
value: before the secondary mirror
type: TEMPORAL
Source sentences:
text: When an object is placed on the bottom mirror, the mirrors create a real image, which is a virtually identical copy of the original that appears in the opening.
text: In the Gregorian design, the primary mirror creates a real image before the secondary mirror.