Whole-sign aspect□ 90°
Tense and action-producing. Three signs apart shares a modality while changing element and polarity. Both people approach movement with a similar tempo, then pull that effort toward different priorities.
Section I
Whole signs, not exact degrees
On the wheel it is drawn with the chord from Aries to Cancer. Whole-sign distance compares the signs; an exact aspect in a birth chart is measured from the planets' actual degrees.
Friction can expose a real decision quickly and give the pair enough pressure to act on it.
Where it gets hard: Competing versions of how to initiate, sustain, or adapt can turn coordination into a contest.
Section II
Communication and repair
Separate the shared objective from the preferred method before debating whose approach should lead.
Pause the contest, divide the decision into parts, and assign authority where each style is most useful.
Section III
Three settings
Love. Chemistry may be vivid, but desire and defensiveness need different channels if conflict is not to become the main form of contact.
Friendship. Mutual challenge can be energising when disagreement does not become a test of loyalty.
Work. Productive pressure sharpens a project once decision rights and escalation points are agreed in advance.
Section IV
Orbs and birth charts
Two planets at 0° and 91° of the zodiac are 91° apart, a 1° orb from the exact 90° square.
Calculate exact square contacts between two charts and read each planet pair, its orb and its direction.
Section V
12 pairs
The other aspects:
