Aspect

An aspect is the angular distance between two planets in a chart. Certain angles — 0°, 60°, 90°, 120°, 180° — are considered significant and describe how two planetary energies relate to each other.

When two planets are a specific number of degrees apart in the zodiac, they form an aspect. The aspect describes the relationship between the two: whether they work in friction, in flow, or in direct tension. The five major aspects are: conjunction (0°, planets merged), sextile (60°, mild support), square (90°, friction and pressure), trine (120°, ease and flow), and opposition (180°, polarization and awareness through contrast). Each has a traditional quality — whether it tends toward harmony or challenge — but no aspect is purely good or bad. An aspect is considered active within an orb: a range of degrees on either side of the exact angle. A square at 87° is still a square (within a 3° orb of exactness). The closer to exact, the stronger the influence. When a transiting planet forms an aspect to a point in your natal chart, that's the specific moment of contact your reading is describing. When two natal planets aspect each other, that's a permanent dynamic in your chart — a tension or resource you were born with.

Not: Aspects are not commands. A natal square between Mars and Saturn doesn't doom you to blocked ambition — it describes a friction point that may motivate unusual discipline or require more careful strategy than others need.

The significance of specific angular separations comes from ancient Greek and Babylonian tradition, not from physical measurement. There is no demonstrated physical mechanism connecting planetary angles to human experience.