Lesson 1 of 4
What an aspect is — orbs and movement
An ASPECT is the geometric angle between two points (typically two planets) measured along the ecliptic. The angles aren't arbitrary — they correspond to harmonic divisions of the circle (1, 2, 3, 4, 6…) and carry recognizable psychological flavors.
ORB = the allowed tolerance around the exact angle. We don't need a planet to be exactly 90° from another to call it a square — we allow a few degrees of slack. Beginners use these typical orbs: 8° for the Sun and Moon; 6° for the other planets; 3° for minor aspects.
APPLYING vs SEPARATING: if the faster planet is moving toward the exact angle, the aspect is APPLYING (its energy is building). If it is moving away, it is SEPARATING (releasing).