Mundane Aspects Study
Generates an event each time a pair of transiting bodies forms an exact aspect to one another.
Appulse Minima Study
Generates an event each time two transiting bodies reach their closest true angular approach while within orb of each other.
Aspect Hotspots Study
Generates an event each time two transiting bodies form an exact aspect while one of them is within orb of a critical degree.
Lunar Phases Study
Generates an event each time the Moon reaches one of the eight phase angles to the Sun: 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°.