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Johann Bayer's 1603 Uranometria plate of Libra: a pair of balance scales engraved on a deep blue sky, the stars heightened in gold

Zodiac myths · Libra

Libra has no Greek myth, and that is the story

The Greeks saw a scorpion's claws here. Babylon saw scales. Rome agreed with Babylon, and the balance stayed.

Johann Bayer, Uranometria, 1603

At a glance

Libra has no classic Greek myth. Greek astronomers called its stars Chelai, the Scorpion's Claws. The scales come from Babylon and Rome, later tied to Justice.

The figure
The scalesAratus, Phaenomena
Sign dates 2026
Sep 23 to Oct 23, 2026Sun enters Sep 23, 2026, 00:05 UTC
Sun in the stars, 2026
Nov 1 to Nov 23, 202623 days inside the IAU Libra
Best seen at midnight
Apr 29 to May 22, 2027best night about May 10, 2027

Libra as a sign

The myth

The claws that became a balance

For the Greeks the scorpion took two signs of sky. Rome gave half of it back as a balance.Urania's Mirror, London 1824 · Library of Congress

Try this today

  • Weigh one decision this week out loud with someone you trust. Name both pans of the scale.
  • Find a place where you have been seeing claws and ask if it is really a balance.
  • On a May night, look between Spica and Antares for the two old claw stars.

Read Aratus's Phaenomena, the great Greek star poem of around 275 BC, and you will not find Libra. In its place he names the Chelai, the Claws, the outstretched pincers of the Scorpion. Ptolemy's Almagest, the star catalogue of around AD 150, still lists the same stars as the Claws. For Greek astronomers the zodiac had a huge scorpion taking up two signs' worth of sky.

You can still hear it in the star names. Libra's two brightest stars are Zubenelgenubi and Zubeneschamali, Arabic for the "southern claw" and the "northern claw."

But not everyone saw claws. Babylonian astronomers had already called this group zibānītu, the Scales, connected with the sun god Shamash and with justice. The Romans took up the scales, Libra in Latin, and by the 1st century BC it was a separate sign. Virgil, writing the Georgics, even jokes that the Scorpion is pulling in its claws to make room in the sky for the deified Augustus.

So Libra's "myth" is really an argument about what these stars are, settled in favour of the balance.

Other tellings

The scales of Justice, next door

A balance for the day of balance: the autumn equinox once fell here.Alexander Jamieson, A Celestial Atlas, 1822 · US Naval Observatory Library

Once the Scales sat beside the Maiden, it was natural to read them together: Virgo as Justice, Libra as the balance she holds. Many later star maps draw it that way, and modern astrology inherits the image of fairness and weighing.

There is also a calendar explanation, given by ancient writers and repeated ever since: in antiquity the Sun reached the autumn equinox, the day of equal light and dark, as it entered this part of the zodiac. A balance for the day of balance. It is a neat fit, but notice that it is about the calendar, not about any god's story.

In the sky

Finding Libra: Apr 29 to May 22, 2027

Sep 23 for the sign, 39 days later for the stars.Urania's Mirror, London 1824 · Library of Congress

Libra is faint and sits between Virgo's Spica and Scorpius's red Antares. Find Zubenelgenubi and Zubeneschamali, the two "claws," roughly halfway between them.

2026: sign Sep 23, 2026, 00:05 UTC to Oct 23, 2026, 09:38 UTC. Sun in the stars: Nov 1 to Nov 23, 2026 (23 days). (Why the 39-day gap.) Libra peaks at midnight near May 10, 2027.

Pick your telling

A balance for the day of balance: the autumn equinox once fell here.

3 versions of the scales.

Libra, 3 ways

The Scorpion's claws

Greek astronomers named these stars the Chelai, the claws of Scorpius, not a separate creature.

Source: Aratus, Phaenomena; Ptolemy, Almagest

See it yourself. Libra: Apr 29 to May 22, 2027.

More to read

One shorter read. It opens in place.

In astrology

What astrologers do with a sign that is an object

Venus rules Libra in traditional astrology, and the sign is read as relational: partners, fairness, aesthetics, weighing two sides. It is the only zodiac sign that is not a living being, which some astrologers take as a clue that Libra is about judgement rather than instinct. If you are reading your Libra placements, the history offers one honest lesson: what looks like a fixed, ancient symbol was once a live disagreement.

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Libra by the numbers

DatesDays
SignSep 23 to Oct 23, 202630
Sun in the starsNov 1 to Nov 23, 202623
Midnight seasonApr 29 to May 22, 202724
Libra in 2026

All times are UTC. In the Americas the local date can be a day earlier; in Asia and Australia a day later.

Quick answers

What is the Greek myth of Libra?

There is no classic Greek myth. The Greeks saw these stars as the Claws (Chelai) of Scorpius. The scales come from Babylonian and Roman tradition, and were later linked to Astraea, goddess of justice.

Which Greek god is associated with Libra?

Later tradition ties the scales to Astraea or Dike (Justice), who is Virgo next door. Astrologically, Libra is ruled by Venus, the Roman Aphrodite.

Why is Libra the only zodiac sign that is an object?

Because it began as part of a creature, the Scorpion's claws, and was redrawn as scales. The Babylonians and Romans read it as a balance.

What do Libra's star names mean?

Zubenelgenubi and Zubeneschamali come from Arabic for the southern and northern claw, a leftover of the Greek view.

When did Libra become its own sign?

The Babylonians already had the Scales. In the Greco-Roman world the name Libra was standard by the 1st century BC.