Assertion: moon's period | /r/HasProperty | the draconic month
Facets:
value: after the chinese mythical dragon
type: OTHER
Source sentences:
text: Well, as we've seen, an eclipse happens when the Moon is at one of the two nodes; and the period which determines this is the Draconic Month.
text: The period of time for two successive lunar passes through the ecliptic plane (returning to the same node) is termed the draconic month, a 27.21222 day period.
text: Since eclipses can occur only when the Sun and Moon are near such nodes, this period is also known as a draconic month, after the Chinese mythical dragon that supposedly ate the Sun to cause a solar eclipse.