Assertion: comet's brightness | /r/HasProperty | unpredictable
Facets:
value: notoriously
type: DEGREE
Source sentences:
text: C/2016 U1 NEOWISE, "has a good chance of becoming visible through a good pair of binoculars, although we can't be sure because a comet's brightness is notoriously unpredictable," said Paul Chodas, manager of NASA's Center for Near-Earth Object (NEO) Studies at JPL.