Whole-sign aspect△ 120°
Harmonious and fluent. Four signs apart shares element and polarity while changing modality. The pair often recognises a common motivation even when each person moves it through a different phase.
Section I
Whole signs, not exact degrees
On the wheel it is drawn with the chord from Aries to Leo. Whole-sign distance compares the signs; an exact aspect in a birth chart is measured from the planets' actual degrees.
Elemental fluency makes encouragement legible and lets each person contribute without lengthy translation.
Where it gets hard: Ease can hide an unattended task or allow assumptions to stand in for an explicit agreement.
Section II
Communication and repair
Use the natural rapport to say the precise thing, especially where agreement has only been implied.
Restore clarity by naming what familiarity caused the pair to skip, then turn the shared value into a concrete promise.
Section III
Three settings
Love. Affection tends to feel recognisable; novelty and direct requests keep the bond from running only on comfortable defaults.
Friendship. Shared sensibilities support loyalty and easy company while different modalities widen what the friends can do together.
Work. A common operating language speeds collaboration, though checkpoints are still needed where neither person expects friction.
Section IV
Orbs and birth charts
Two planets at 0° and 121° of the zodiac are 121° apart, a 1° orb from the exact 120° trine.
Calculate exact trine contacts between two charts and read each planet pair, its orb and its direction.
Section V
12 pairs
The other aspects:
