Star lore

Caelum

Direct answer

Caelum is a small, faint southern constellation named for an engraver's chisel.

Caelum is an inconspicuous southern constellation representing an engraving tool.

Constellations & Star LoreThe Great Almanac DictionaryUpdated 2026-09-26

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At a glance

Found in
Constellations & Star Lore
Related
Auriga, Boötes, Camelopardalis, Cancer Constellation

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The story behind Caelum

Nicolas-Louis de Lacaille introduced Caelum in the eighteenth century after surveying the southern sky from the Cape.

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The Road of the Sun

Where the twelve signs came from, and why they carry the names they do.

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Why Caelum matters

Caelum belongs to Lacaille's group of instrument-themed constellations and occupies a sparse region near Eridanus and Columba.

How to read Caelum

Locate Caelum by chart coordinates from brighter Lepus, Columba, and Eridanus; its own stars offer little naked-eye guidance.

Caelum in practice: an example

Alpha Caeli is a modest star that functions better as a chart confirmation than a visual beacon.

Where readings of Caelum go wrong

The Latin caelum here means a chisel, not the similar word commonly translated as sky or heaven.

Sources and editorial method

Research references used for this entry include:

Source
The Great Almanac Dictionary
Category
Constellations & Star Lore
Last updated
2026-09-26

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AurigaAuriga is the Charioteer, a northern constellation recognized by Capella and a broad pentagon. BoötesBoötes is the Herdsman, a kite-shaped spring constellation anchored by Arcturus. CamelopardalisCamelopardalis is the Giraffe, a broad northern constellation with few bright stars. Cancer ConstellationCancer is the Crab, a dim zodiac constellation containing the Beehive Cluster. ConstellationA Constellation is an official bounded region of the sky, often associated with a traditional star figure. AsterismAn Asterism is a familiar star pattern rather than an official bounded constellation.

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Common questions

What is caelum?

Caelum is a small, faint southern constellation named for an engraver's chisel.

What do people get wrong about caelum?

The Latin caelum here means a chisel, not the similar word commonly translated as sky or heaven.

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