A planet is Void of Course when it no longer makes a major aspect (0, 60, 90, 120, 180 degree aspects). In the modern definition, the Moon or a planet is void of course if it makes no further Ptolemaic aspects before leaving its current sign. Lilly says the Moon is void of course when it is not within orb of applying to a major aspect with any other of the seven classical planets (Moon through Saturn).
Comments: Void of Course