"Caelum", meaning "Chisel" or "Burin" is a constellation (albeit one of the more smaller, uninteresting ones) which was defined by the 18th century astronomer Nicolas Lacaille. It can be barely seen in winter above the southern horizon. The "Chisel" is the tool of Sculptor, a constellation west of Eridanus, near the star 41 Eri. None of the stars are named.

Sketch:

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