Assertion: moon's perigee | /r/HasProperty | anomalistic month
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Source sentences:
text: the period of a complete revolution of the moon around the earth, as the period between successive new moons (synodic month) , equal to 29.531 days, or the period between successive conjunctions with a star (sidereal month) , equal to 27.322 days, or the period between successive perigees (anomalistic month) , equal to 27.555 days, or the period between successive similar nodes (nodical month or draconic month) , equal to 27.212 days.