Assertion: reflecting telescope's mirror | /r/HasProperty | small
Facets:
value: quite
type: DEGREE
Source sentences:
text: The Cassegrain Reflector uses a small mirror that is not angled but is instead convex, reflecting light back towards an opening in the center of the objective mirror that contains the convex lens eyepiece.
text: The mirror on the radial arm was small enough that the observer could see the reflection of an object in half the telescope's view while seeing straight ahead in the other half.
text: This secondary mirror is quite small as compared to the primary mirror.