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Aspects Between Planets

An aspect is the angle between two planets along the ecliptic. It need not be exact to the degree — a deviation is allowed, called the orb, and it differs per aspect. We compute the five major, so-called Ptolemaic aspects; deliberately not the minor ones, because with those it quickly stops being possible to tell a pattern from coincidence.

SymbolAspectAngleOrbWhat it does
conjunction± 8°energies merge — amplifying each other
sextile60°± 4°opportunity — a cooperation awaiting your move
square90°± 6°creative tension — friction that forces growth
trine120°± 6°natural harmony — a gift that needs no pushing
opposition180°± 8°polarities — balance is sought between two shores

The orb is the permitted deviation from the exact angle. It is not the same for every aspect: conjunction and opposition tolerate eight degrees, a sextile only four. The tighter the orb, the more strongly the aspect is felt in a chart.

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