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Constellation · Cae

Caelum

The Chisel

A small, faint southern constellation named for an engraver's chisel; its brightest star is only about magnitude 4.4.

Southern skyGenitive: Caeli
Find Caelum in the sky map
Star chart of Caelum: its brightest stars joined by the traditional constellation figure inside the IAU boundary, north up and east to the left
Chart drawn from the Hipparcos catalogue (stars to magnitude 6). North is up, east is left. The dashed line is the official IAU boundary.
Brightest star
Alpha Caeli

Magnitude 4.44

Best seen
January

Highest in the sky at 9 pm local time (winter in the northern hemisphere)

Whole constellation visible from
90°S to 41°N

Latitudes where every part of it rises above the horizon at some time of year

Approximate area
120 sq. degrees

The whole sky covers about 41,253 square degrees

Origin
Introduced by Nicolas-Louis de Lacaille in the 1750s
Catalogue stars
7

Stars brighter than about magnitude 6, the naked-eye limit under dark skies

Can you see Caelum from where you live?

This depends only on your latitude. Pick the row nearest to you; for your exact sky tonight, use the sky map.

LatitudeCaelum
60°NOnly part of it ever clears the horizon
40°NThe whole constellation rises and sets
20°NThe whole constellation rises and sets
the equatorThe whole constellation rises and sets
20°SThe whole constellation rises and sets
40°SThe whole constellation rises and sets
60°SThe whole constellation rises and sets

Questions about Caelum

When is Caelum best seen?

Caelum stands highest in the sky at 9 pm local time in January. That makes winter evenings the best time for observers in the northern hemisphere; in the southern hemisphere the season is reversed.

What is the brightest star in Caelum?

The brightest star in Caelum is Alpha Caeli, magnitude 4.44.

Where on Earth can you see Caelum?

The whole of Caelum can be seen from latitudes between about 90°S and 41°N. From 40°N: The whole constellation rises and sets. From 35°S: The whole constellation rises and sets.

What does Caelum mean?

Caelum is Latin for "the Chisel". Introduced by Nicolas-Louis de Lacaille in the 1750s.