♊ Gemini
mutable air · Sun in Gemini: May 21 – June 21, 2026 (computed from the ephemeris)
Gemini is the year learning to talk: mutable air at the end of spring, ruled by Mercury, the planet of language, traffic and exchange. The twins are the tradition's emblem for a mind that must hold two of everything — both sides of the question, both halves of the conversation. No planet is exalted in Gemini; it is nobody's throne room, which suits a sign that prefers circulation to occupancy.
At its best the style is quick, funny and genuinely curious. The familiar failure is breadth without weight — the tab left open, the thread dropped. The classical body-map gives Gemini the hands, arms and lungs: the organs of grasping and of speech.
In the tradition
| Ruler | Mercury |
| Exalted here | no planet |
| In detriment | Jupiter (it rules the opposite sign) |
| In fall | no planet |
| Body-map | the hands, arms and lungs |
Every fact above is read from the same dignity tables the chart engine uses — the reference cannot drift from the math.
The three decans
| Decan | Chaldean face | Triplicity ruler |
|---|---|---|
| 0°–10° | Jupiter | Mercury |
| 10°–20° | Mars | Venus |
| 20°–30° | Sun | Saturn |
Two systems, honestly both: the Chaldean faces walk the seven classical planets in slowest-to-fastest order continuously through all 36 decans; the triplicity decans hand each third to the ruler of the next sign of the same element.
The axis, and the sign's kin
Gemini faces Sagittarius across the wheel; the axis is about facts and meaning: the collected detail against the pattern it was collected for.
Same element (air triad): Libra · Aquarius. Same modality (mutable cross): Virgo · Sagittarius · Pisces.
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