Caelum

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AbbreviationCae
MeaningChisel
Pronunciation Guide is based on “Pronouncing Astronomical Names,” published in 1943 by the American Astronomical Society.SEE-lum
Genitive The genitive is the Latin possessive form used in star names. For example, Alpha Orionis means “the Alpha of Orion.”SEE-lye
Best MonthJanuary
VisibilitySouthern
OriginEnlightenmentNamed by Nicolas-Louis de Lacaille in the 1750s; these represent the scientific and artistic tools of the "Age of Reason".
AuthorLacailleKnown as the "Father of Southern Astronomy," he mapped nearly 10,000 stars and created 14 new constellations in the southern hemisphere.
Typeconstellation
DifficultyExpert
DescriptionOne of the faintest and most obscure constellations in the sky, Caelum was created by Lacaille during his 1750s southern sky survey to represent the burin or engraving chisel used by sculptors and artists. It sits in a particularly sparse region between Eridanus and Columba, containing no star brighter than magnitude 4.5. Its very faintness makes it one of the least-observed constellations in the sky. The brightest star, Alpha Caeli, is a double star about 65 light-years away; through a small telescope it resolves into a white primary and a faint red dwarf companion.

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