Assertion: comet's designation | /r/HasProperty | 2p/encke
Facets:
Source sentences:
text: Comet Encke or Encke's Comet (official designation: 2P/Encke) is a periodic comet that completes an orbit of the Sun once every 3.3 years.
text: Comet Encke or Encke's Comet (official designation: 2P/Encke) is a periodic comet that completes an orbit of the Sun once every three years - the shortest period of any known comet.