ASTROLOGY · LESSON 4 OF 7 · 14 MIN
Aspects — How the Planets Speak to Each Other
The five Ptolemaic aspects, orbs, applying and separating, and reception.
An aspect is a meaningful angle between two planets, measured around the zodiac. Through their aspects the planets "see" and affect each other. Ptolemy related them to musical harmony: the same simple ratios that make pleasing intervals make the aspects.