Assertion: great comet | /r/HasProperty | visible
Facets:
value: for approximately 3 months
type: TEMPORAL
value: to the naked eye
type: TRANSITIVE-OBJECT
Source sentences:
text: The Great Comet of 1861, formally designated C/1861 J1 and 1861 II, is a long-period comet that was visible to the naked eye for approximately 3 months.