Dictionary term
Hydrus
Direct answer
Hydrus is a small far-southern constellation representing a water snake near the south celestial pole.
Hydrus is the Southern Water Snake, positioned between the Magellanic Clouds and the pole.
Hydrus is the Southern Water Snake, positioned between the Magellanic Clouds and the pole.
A symbolic locator, not a substitute for an observational chart at a specific place and time.Quick reference
- Use when
- Use Achernar and the Small Magellanic Cloud to bracket Hydrus, then trace its simple triangle.
- Do not use it for
- Hydrus is not a southern extension of Hydra; the IAU recognizes them as separate constellations.
- Reference category
- Constellations & Star Lore
- Related terms
- Horologium, Hydra, Indus, Lacerta
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The story behind Hydrus
Hydrus originated with late-sixteenth-century Dutch southern-sky mapping and appeared in Bayer's atlas.
Hydrus in spiritual tradition
Hydrus offers a compact polar counterpart to the enormous Water Snake of the northward sky.
Hydrus: fact and faith, kept distinct
This is a factual sky reference. It can support wonder and orientation without turning a measured position or inherited pattern into a claim of fate or private revelation.
Hydrus in numerology
Hydrus is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Hydrus matters
Its circumpolar southern location supplies orientation among Tucana, Mensa, Eridanus, and Octans.
Hydrus at work: an example
Beta Hydri is a nearby Sun-like subgiant and the constellation's brightest star.
Where interpretation stops
Hydrus is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- International Astronomical Union: The Constellations - Official names, abbreviations, and boundaries for the 88 modern constellations.
- NASA Space Place: What Are Constellations? - NASA introduction to constellation regions, patterns, visibility, and seasonal sky changes.
- Source
- The Great Almanac Dictionary
- Category
- Constellations & Star Lore
- Also appears in
- Constellations & Star Lore
- Aliases
- None listed
- Last updated
- 2026-07-16
Circle the southern pole through Hydrus
Hydrus in a book is one thing; Hydrus in your own birth chart is your life. The Oracle casts your real chart and tells you what it means for your love, your work, and your year ahead, in conversation, free.
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Common questions
What is Hydrus?
Hydrus is a small far-southern constellation representing a water snake near the south celestial pole.
How is Hydrus used in an almanac?
Use Achernar and the Small Magellanic Cloud to bracket Hydrus, then trace its simple triangle.
What should I avoid when interpreting Hydrus?
Hydrus is not a southern extension of Hydra; the IAU recognizes them as separate constellations.
