How is the quintile angle of 72 degrees derived?

72 degrees divides the circle into 5 equal parts. Aspects are ratios of the circle rather than arbitrary distances, which is why the minor set is small: the minor aspects come from the simplest divisions, and each further subdivision produces a narrower, more contested aspect.

What orb should a quintile use?

This site uses 1.5 degrees by default for the quintile. Orb is a convention, not a measured quantity: there is no agreed value, practitioners commonly tighten orbs for minor aspects and for slow-moving bodies, and some assign orb to the planets involved rather than to the aspect. Widen the orb and more aspects appear; narrow it and the same chart looks sparse. Any aspect list is therefore only comparable to another when both state the orb used.

Is the quintile a good or bad aspect?

Neither by itself. The quintile is classed as neutral: its effect follows the bodies involved rather than the angle, so the same aspect reads very differently between, say, two benefics and two malefics.

Quintile

72°·neutral·minor·default orb ±1.5°

Classical source

Fifth-harmonic aspect (360°/5 = 72°). Introduced by Kepler in Harmonices Mundi (1619). Associated by Kepler with creative or talent themes.

Modern Western reading

Modern reading: creative gift or specific talent. The two bodies form an unusual but productive resonance.

Quintile between two planets

Cited reference for this aspect between each pair of planets. Inner-planet pairs only list aspects their orbits can actually form.

Other aspects

Questions

What is a quintile in astrology?: A minor aspect of 72 degrees. Fifth-harmonic aspect (360°/5 = 72°). Introduced by Kepler in Harmonices Mundi (1619). Associated by Kepler with creative or talent themes. Modern reading: creative gift or specific talent. The two bodies form an unusual but productive resonance.
How is the quintile angle of 72 degrees derived?: 72 degrees divides the circle into 5 equal parts. Aspects are ratios of the circle rather than arbitrary distances, which is why the minor set is small: the minor aspects come from the simplest divisions, and each further subdivision produces a narrower, more contested aspect.
What orb should a quintile use?: This site uses 1.5 degrees by default for the quintile. Orb is a convention, not a measured quantity: there is no agreed value, practitioners commonly tighten orbs for minor aspects and for slow-moving bodies, and some assign orb to the planets involved rather than to the aspect. Widen the orb and more aspects appear; narrow it and the same chart looks sparse. Any aspect list is therefore only comparable to another when both state the orb used.
Is the quintile a good or bad aspect?: Neither by itself. The quintile is classed as neutral: its effect follows the bodies involved rather than the angle, so the same aspect reads very differently between, say, two benefics and two malefics.

Reference, not advice

This is cultural and astronomical reference, not personal prediction or advice.

Aspect classifications follow classical Western convention. Different traditions assign slightly different orb budgets - the values shown are conservative defaults used throughout this site.

Sources

Ptolemy, Tetrabiblos

Last reviewed 2026-05-28.