Assertion: radio telescope's reflector | /r/CapableOf | cast shadow
Facets:
value: on the primary
type: LOCATION
Source sentences:
text: An unusual variant of the Cassegrain is the Schiefspiegler telescope ("skewed" or "oblique reflector", also known as "kutter telescope" after its inventor Anton Kutter) which uses tilted mirrors to avoid the secondary mirror casting a shadow on the primary.