Gemini

What touches Gemini in September 2026

Every movement this month that stands in a whole-sign relation to Gemini, with the solar house it falls in. Sky-to-sky aspects are left out: they have no sign of their own, so they stand in no relation to yours.

• Uranus stations retrograde in Gemini on the 11th, in your own sign—your 1st house.
• Mercury enters Libra on the 11th, trine your sign—your 5th house.
• The new moon falls in Virgo on the 11th, square your sign—your 4th house.
• Sun enters Libra on the 23rd, trine your sign—your 5th house.
• The full moon falls in Aries on the 26th, sextile your sign—your 11th house.
• Mars enters Leo on the 28th, sextile your sign—your 3rd house.

What a sign gives the engine—and what it doesn't

Mercury rules Gemini, and that matters to the scoring in one specific way—not the way most sun-sign writing implies. Nothing gives Mercury extra weight because you are Gemini; the scoring never reads your Sun sign at all. What it does read is the transiting planet’s own condition: a Mercury moving through Gemini is in domicile, and our astrology engine counts that contact for more than the same aspect from a Mercury with no dignity.

In Gemini, Mercury is in domicile; Jupiter is in detriment, and no planet falls here. Those conditions are the whole of what a sign does to a transiting body in our rulebook—the same dignity table the scoring reads, which is why a transit from a planet in its own sign counts for more than the identical angle from one with nothing here.

Right now Gemini’s ruler, Mercury, is in Libra, holding no dignity either way there.

The other thing a sign gives our astrology engine is geometry. Every transit stands in a whole-sign relation to Gemini—conjunct, sextile, square, trine or opposite—and that relation is fixed by the sign alone, so it is computable without knowing anything else about you. The dated lines above are exactly that, and exactly its limit.

Gemini is an air sign, with Libra and Aquarius. That is a fact about the sign and not about the scoring: our rulebook has no element term in it at all. The dated list above is computed for Gemini alone, and it comes out different for Libra and Aquarius—same element, different geometry.

Kalendom is the precise and honest horoscope: it reads your natal chart against the real sky and turns months like this into your exact dates.

What the chart doesn't tell you

Sun-sign astrology is the entry point—it's also the least specific bit. Two Gemini suns born minutes apart in the same city can have wildly different days because their Ascendants (the cusp of the 1st house) sit at different degrees. House placement is where the mainstream horoscope stops and we keep going.

That's why the calculator asks for your birth time. With a real Ascendant, the Kalendom engine maps every transit to a specific house, so "Mars in your 5th" means something concrete for your life rather than a generic Gemini blurb.