Assertion: orbital period | /r/SimilarTo | sun-synodic period
Facets:
value: namely
type: OTHER
value: usually
type: TEMPORAL
Source sentences:
text: In the case of a planet's moon, the synodic period usually means the Sun-synodic period, namely, the time it takes the moon to complete its illumination phases, completing the solar phases for an astronomer on the planet's surface.