Why do they make small talk feel dangerous?

Are Libra and Scorpio compatible?

Libra and Scorpio are a semi-sextile: air and water, cardinal and fixed, one sign apart on the zodiac wheel. It is not one of Ptolemy’s five classical aspects; astrologers call it a minor angle. That is the Sun-sign answer, shared by everyone born under these signs. The personal answer sits in Venus, Mars, the Moon and the descendant.

You're here because of someone.

The Sun signs say not quite. Two whole charts say far more.

Your card is worked out from the day, the minute and the place you were born, not from a sign you share with a twelfth of the planet.

Every Libra and every Scorpio reads this page. Only your card knows you.

Find out your true compatibility.

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Admit one Libra Air · Cardinal Sep 23 – Oct 23

Admit one Scorpio Water · Fixed Oct 24 – Nov 21

⚺︎ Semi-sextile · 30°Air + water · cardinal + fixedA minor aspect, added long after Ptolemy

What it is: synastry, the art of comparing two charts

Comparing two people's charts has a name: synastry. Astrologers lay one chart over the other and look at the angles between the two sets of planets, the same angles the old books use inside a single chart.

Sun-sign compatibility is the shortcut version. It compares only the two Suns, and the angle between them is the aspect: four signs apart is a trine, two apart a sextile, three apart a square, six apart an opposition. Ptolemy called the trine and the sextile harmonious, and the square and the opposition disharmonious. ¹

Elements describe temperament (fire, earth, air, water) and modes describe pace (cardinal starts, fixed holds, mutable adapts). A pair can share one, both or neither. Libra and Scorpio share neither.

Full synastry goes much further: whose Venus lands on whose Moon, where one person's planets fall in the other's houses, how the two descendants line up. Ptolemy himself compared the Sun and the Moon of both charts, not just the Suns. That is why the same Libra can get on beautifully with one Scorpio and not at all with another. ²

Why do Libra and Scorpio feel so close and so far apart?

The traditional portrait: the same for every Libra and every Scorpio.

Libra in love

Libra is the romantic of the old books, in love with love: candlelight, the right song, a partner who matches the room. Traditionally a Libra courts with charm and keeps the peace at almost any cost, and is happiest as one half of a pair. Make a Libra choose between you and fairness, though, and watch it agonise.

Scorpio in love

Scorpio, in the old portrait, loves privately and all the way down. Slow to trust, said to test before it commits, and loyal once it does. The books give Scorpio a long memory, for kindness and for slights, and no patience for anything shallow. For a Scorpio, small talk is a doorway, never the room.

Together

Air and water. One thinks it through, the other feels it through, and the old books call them hard to translate. Mist on a lake, or weather at sea?

Cardinal meets fixed. One starts things. The other keeps them going, or keeps them exactly where they were.

These two share a past in the sky: Libra's stars were once the Scorpion's claws. Libra wants it lovely and fair. Scorpio wants it true, and won't settle for lovely. The old books cast Libra as the diplomat and Scorpio as the one who reads the small print.

Where it comes from: comparing charts, from Babylon to your phone

Era by era, with sources. More in the Reading Room.

Ancientc. 450 BCEThe Babylonian zodiac settles into twelve equal zones, the frame later comparisons of signs are built on. ³
Ancient410 BCEThe earliest known horoscopes, from Babylon and Nippur, date to this year. ³
Classicalc. 275 BCEIn Aratus's Phaenomena there is no Libra: its stars are the Claws of the Scorpion. Pseudo-Hyginus says the Scorpion was so large that one part of it was called the Balance. ^4,5
Classical1st century BCEThe Balance becomes the usual name for the sign in the first century BCE, according to F. E. Robbins, the Loeb translator of Ptolemy; Ptolemy still uses both names. In 29 BCE Virgil imagines the Scorpion pulling in its claws to make room for Octavian as a new star. ^1,6
Classical2nd century CEPtolemy's Tetrabiblos names the aspects between signs and calls the trine and sextile harmonious, the square and opposition disharmonious. ^7,1
Classical2nd century CEPtolemy's chapter on the planets' houses puts Libra under Venus and Scorpio under Mars. ¹
Classical2nd century CEPtolemy calls signs one apart disjunct, or alien: they share none of his aspects. Neighbours, he says, are turned away from one another. ¹
Classical2nd century CEIn his chapter on marriage, Ptolemy compares two charts: the Sun and Moon of one against the Sun and Moon of the other, reading trines and sextiles between them as concord and squares and oppositions as friction. ²
Classical2nd century CEHis chapter on friends and enemies does the same with the Sun, the Moon, the rising degree and the Lot of Fortune of both people. ²
Medieval12th centuryAbu Ma'shar's introduction to astrology circulates in Latin; the University of Edinburgh holds a 12th-century copy. ⁸
1800s1890Alan Leo's Astrologer's Magazine offers its annual subscribers a free horoscope by post. ⁹
1930s1937R. H. Naylor's newspaper horoscope, begun in 1930, is organised by the twelve sun signs. ¹⁰
1970s1978Linda Goodman's Love Signs is published by Harper & Row. ¹¹
1980s–90s1980–1999Chart services run by computer arrive: Astrodienst in Zürich sells birth charts from 1980 and goes online in 1996. ¹²
Today202430% of US adults consult astrology, tarot or a fortune teller at least yearly, mostly for fun, according to Pew Research Center. ¹³

Worked out, not guessed

Libra is sign 7 of 12 and Scorpio is sign 8: one sign apart, 30°. Semi-sextiles always share nothing the old system counts: element, mode and polarity all differ. Of the 78 possible sun-sign pairings, 12 are semi-sextiles.
Venus never gets more than about 47° from the Sun, so a Libra's Venus is in one of five signs (Leo, Virgo, Libra, Scorpio or Sagittarius) and a Scorpio's in one of five (Virgo, Libra, Scorpio, Sagittarius or Capricorn). Which one is a matter of the year and the day.

Why does it feel like they’re always testing you?

The Sun can’t answer that. These four can, and your card reads every one of them.

Venus · how you love

How do you love, and how do they want to be loved?

That's Venus. It never strays far from the Sun, so a Libra's Venus can only sit in Leo, Virgo, Libra, Scorpio or Sagittarius, and a Scorpio's Venus can only sit in Virgo, Libra, Scorpio, Sagittarius or Capricorn. Two people with the same sun sign can want completely different evenings.

Your card reads your Venus.
Mars · what you want

Why does being polite make them angrier?

That's Mars: desire, temper, the way you chase what you're after. It can sit in any of the twelve signs, so two Scorpios born a season apart can want, and fight about, completely different things.

Your card reads your Mars.
The Moon · what you need

Why do they feel like home one day and a stranger the next?

That's the Moon: what you need when the door's shut and the day's gone wrong. It changes sign every two and a half days. If their Moon falls in your sign… well.

Your card reads your Moon.
The descendant · who you’re drawn to

Why do you keep falling for the same type?

That's your descendant, the edge of the seventh house: the sign setting in the west at your birth minute. Tradition reads it as the partner you keep noticing. It needs your birth time and place.

Your card reads your rising sign and your descendant.