Assertion: star's planet | /r/CapableOf | exhibit retrograde motion
Facets:
value: to different extents
type: LOCATION
Source sentences:
text: The planets exhibit retrograde motion to different extents: Mars's retrograde motion may span 20 deg. of the sky and last up to 81 days, Jupiter's retrograde motion is about half as much as Mars, and the effect is progressively less for Saturn, Neptune, Uranus, and Pluto.