Aquarius
Aquarius is the eleventh sign of the tropical zodiac, spanning January 20 to February 18. It is an Air sign, Fixed in modality, traditionally ruled by the planet Saturn.
Last reviewed: 2026-07-19
Historical fact
In Babylonian astronomy, the sky sector now known as Aquarius was associated with GU.LA ('the Great One'), linked to the god Ea/Enki pouring out water. The water-bearer image is genuinely ancient and Mesopotamian, later reattributed by the Greeks to Ganymede, the youth of great beauty taken to Olympus to serve as cupbearer to the gods. Ptolemy systematized Aquarius as the eleventh sign in the sequence in the Tetrabiblos, around 150 CE.
Interpretation — Western Astrology (Tropical)
In modern Western astrology, Aquarius is read as the sign of independence and innovation: Fixed energy (steadiness, determination) combined with the element Air (ideas, communication) under the traditional rulership of Saturn, the planet associated with structure and rules — Western astrology from the 20th century onward has also assigned Uranus as a co-ruler, following its 1781 discovery, reinforcing readings of originality and breaking with convention (it's worth noting Uranus is a modern addition, not part of the classical seven-planet system). Commonly associated traits: humanitarian and unconventional thinking, an innovative spirit, and a strong regard for individual and collective freedom. The shadow side commonly includes excessive emotional detachment and a tendency toward stubborn contrarianism.
Interpretation — Vedic Astrology (Sidereal)
In the Vedic system (Jyotish), the corresponding sign is Kumbha, also ruled by Saturn (Shani) and likewise the eleventh of the twelve rashis. Because it uses the sidereal zodiac, which accounts for the precession of the equinoxes, Kumbha's date window is currently shifted relative to tropical Aquarius — today falling roughly from mid-February to mid-March, varying by the ayanamsa (calculation method) used. Vedic astrology uses only the classical nine grahas (Navagraha) and does not assign rulership to Uranus, since it falls outside that system. Classical texts such as the Brihat Parashara Hora Shastra describe Kumbha natives as reflective, detached and oriented toward the collective good, with an independent temperament — a characterization broadly convergent with the Western reading, despite the two systems developing independently.
This section presents one tradition's interpretation, not a verifiable fact.
Frequently asked questions
- Is Aquarius ruled by Saturn or Uranus?
- Traditionally, by Saturn. Since Uranus was discovered in 1781, modern Western astrology has also assigned that planet as a co-ruler of Aquarius, but that is a 20th-century-onward addition — Vedic astrology, which uses only the seven classical planets plus the lunar nodes, keeps Saturn as the sole ruler of Kumbha.
- Where does Aquarius' water-bearer symbol come from?
- It already existed in Babylonian astronomy, associated with the GU.LA sector and the god Ea/Enki pouring out water. The Greeks later reinterpreted the figure as Ganymede, cupbearer to the gods on Olympus.
- Are Aquarius and Kumbha (Vedic) the same sign?
- They correspond to the same position in the sequence (eleventh sign, ruled by Saturn), but occupy different date windows, because the Vedic zodiac is sidereal (aligned to the constellations) while the Western zodiac is tropical (aligned to the seasons) — the gap today is roughly 24 degrees.
Sources
- Nicholas Campion. A History of Western Astrology (2009).
- Claudius Ptolemy. Tetrabiblos (c. 150).
- Maharishi Parashara (trans. R. Santhanam). Brihat Parashara Hora Shastra (1984).
- David Pingree. From Astral Omens to Astrology: From Babylon to Bīkāner (1997).