Assertion: nebula's planet | /r/HasProperty | discovered orbiting the star
Facets:
value: in 2007
type: TEMPORAL
value: with a period of 142 days
type: OTHER
value: in december
type: TEMPORAL
Source sentences:
text: A transiting extrasolar planet was discovered orbiting the star in December 2009.
text: In 2007, a Jupiter-like planet was discovered orbiting the star with a period of 142 days.