Star lore
Centaurus
Direct answer
Centaurus is a large southern constellation containing Alpha Centauri, Beta Centauri, and the globular cluster Omega Centauri.
Centaurus is a bright southern constellation rich in nearby stars and deep-sky objects.
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At a glance
- Found in
- Constellations & Star Lore
- Related
- Capricornus Constellation, Carina, Cepheus, Cetus
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The story behind Centaurus
Centaurus was catalogued by Ptolemy, although precession has carried much of it below the horizon of many northern observers.
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The Road of the Sun
Where the twelve signs came from, and why they carry the names they do.
Why Centaurus matters
Centaurus’s two bright pointer stars guide observers toward Crux, while Alpha Centauri marks the nearest stellar system to the Sun.
How to read Centaurus
Identify Alpha and Beta Centauri as the Southern Pointers, then follow their line toward the Southern Cross.
Centaurus in practice: an example
Omega Centauri appears as a naked-eye blur at dark sites and resolves into a vast globular cluster through a telescope.
Where readings of Centaurus go wrong
Alpha Centauri and Beta Centauri look like a pair but are at very different distances.
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
- Last updated
- 2026-09-26
Use the Pointers to cross the southern sky
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Common questions
What is Centaurus?
Centaurus is a large southern constellation containing Alpha Centauri, Beta Centauri, and the globular cluster Omega Centauri.
What do people get wrong about Centaurus?
Alpha Centauri and Beta Centauri look like a pair but are at very different distances.
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