Assertion: black hole's event horizon | /r/HasProperty | circular
Facets:
value: of a predictable size
type: OTHER
value: roughly
type: DEGREE
value: further
type: DEGREE
Source sentences:
text: Further, the event horizon should be roughly circular and of a predictable size, which depends on the black hole's mass.
text: – whether the event horizon is circular (as predicted), or oblate or prolate instead,