Skip to main content

Libra. ♎︎

The zodiac’s only object: claws to the Greeks, scales to Babylon and Rome, justice by committee.

By the ZOD Culture Editorial Team · The Twelve, a series read as literature

The sign, in brief for the record

Dates

Sep 23 to Oct 22

tropical reckoning

Element & quality

Air, cardinal

a season-opening sign

Ruling planet

Venus

in the Hellenistic scheme

In Babylon

ZIB.BA.AN.NA

‘the Balance of Heaven’

In Greek

Chelai

‘the Claws’

Brightest star

Zubeneschamali, β Librae

‘the northern claw’

N E ECLIPTIC ZUBENESCHAMALI βZUBENELGENUBI αZUBENELHAKRABI γBRACHIUM σ
Libra: principal stars, magnitudes to scale N up, E left · ZOD Culture
The myth

The scales are the only thing in the zodiac that was never alive, and for centuries Greece refused to see them at all. To Aratus and his readers these stars were the Chelae, the Claws of the Scorpion, reaching a full sign’s width beyond the beast itself. The scorpion, in the Greek sky, was simply enormous.

Rome cut the claws off. By Caesar’s century the Balance was official, a civic emblem rather than a monster’s hardware, sometimes set in the hand of the neighbouring maiden: Justice weighing at last. The star names never got the memo. The two brightest are still ‘the southern claw’ and ‘the northern claw’ in Arabic, a scorpion’s grip fossilised inside a courtroom prop.

Before Greece

The Romans were restoring, not inventing. Babylon had ZIB.BA.AN.NA, the Balance of Heaven, in this very place: when the zodiac was drawn, the autumn equinox stood here, day and night in equal pans. The scales predate the claws. Greece was the interruption.

In the sky

A faint quadrangle between Virgo and Scorpius, best found from its neighbours. Its one party trick is Zubeneschamali, the northern claw, which generations of observers have sworn looks green, the only naked-eye star with that reputation. Photometry says it cannot be; eyes at the telescope keep filing the report anyway.

Sources: MUL.APIN I · Aratus, Phaenomena 89 · Ptolemy, Almagest VII · Hyginus, Astronomica 2.26

Libra, in Pictures

the scales across three thousand years of images
plate: dendera ceiling, detail
the balance · louvre
Egypt, c. 50 BC: the balance drawn plainly at Dendera.
plate: très riches heures,
october folio · musée condé
France, c. 1415: the scales above the October sowing.
plate: lorenzetti, allegory of good
government, siena, detail
Siena, 1339: the scales as civic virtue.

Working tools

settle a sign, then read a pairing