Assertion: moon's speed | /r/HasProperty | fastest about 3 january
Facets:
Source sentences:
text: Because the Chinese and Hindu lunisolar calendars allow the leap month to occur after or before (respectively) any month but use the true motion of the Sun, their leap months do not usually occur within a couple of months of perihelion, when the apparent speed of the Sun along the ecliptic is fastest (now about 3 January).