Aries

Lore & Background

Aries has been known since ancient times. In the Babylonian MUL.APIN tablets, the constellation was called MULLÚ.ḪUN.GÁ, 'The Agrarian Worker' or 'The Hired Man', and was the final station along the ecliptic. The shift to identifying it as a ram likely occurred later due to association with Dumuzi the Shepherd. In ancient Egyptian astronomy, Aries was associated with the god Amun-Ra, depicted as a man with a ram's head, and was called the 'Indicator of the Reborn Sun' because it was the location of the vernal equinox. In Greek mythology, Aries is associated with the golden ram that rescued Phrixus and Helle. The ram was sent by Nephele to save her children from sacrifice; Helle fell off and drowned in the Dardanelles, later called the Hellespont. Ptolemy depicted Aries as a crouched, wingless ram with its head turned toward Taurus. Medieval Muslim astronomers, including al-Sufi, depicted it as a ram, though some Islamic celestial globes showed a nondescript four-legged animal. The obsolete constellations Apes, Vespa, Lilium, and Musca Borealis all centered on the same four stars now known as 33, 35, 39, and 41 Arietis, but none gained wide acceptance.

Reader's Guide

Aries holds historical significance as one of the oldest recognized constellations, with roots in Babylonian, Egyptian, Greek, and medieval Islamic astronomy. Its association with the vernal equinox—the First Point of Aries—made it a key marker for ancient calendars and astrology, though precession has since moved that point into Pisces. The constellation's stars have been incorporated into various cultural systems, including Chinese lunar mansions (Lou, Wei, Tianyin, Zuogeng) and Hindu astronomy (Aswini). Despite being relatively dim, Aries contains several interacting galaxy pairs and hosts meteor showers such as the Daytime Arietids. Its official boundaries were defined in 1930 by Eugène Delporte, and its three-letter abbreviation 'Ari' was adopted by the International Astronomical Union in 1922. Aries remains a standard reference in both Western and non-Western astronomical traditions.

Did You Know?

• Aries is one of the 48 constellations described by the 2nd century astronomer Ptolemy.
• The First Point of Aries, defined by Hipparchus in 130 BC, has since moved into Pisces due to precession.
• In traditional Chinese astronomy, the brightest stars of Aries formed a constellation called 'Lou', associated with ritual sacrifice of cattle.
• The obsolete constellation Musca Borealis was created by Johann Hevelius in 1690 but its stars were later reabsorbed into Aries.

Common Misconceptions (Editorial)

- Some people think Aries has always been seen as a ram, but earlier Babylonian records depict it as a farmhand or hired man, with the shift to a ram likely coming later through association with Dumuzi the Shepherd. - It is a common misconception that the First Point of Aries still marks the vernal equinox in Aries; in fact, due to precession, that point has since moved into Pisces. - A few may assume the modern constellation was unchanged from ancient times, but obsolete constellations like Musca Borealis once occupied stars now part of Aries.

Why It Matters (Editorial)

Aries endures not just as a zodiac sign but as a marker of humanity’s earliest efforts to map the sky and track seasonal change. Its role in marking the vernal equinox in antiquity ties the constellation to foundational advances in astronomy, while its rich mythology—from Babylonian farmhands to Greek golden rams—shows how different cultures used the stars to tell stories that still resonate today.