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Stars and Sticks| Abbreviation | Nor |
|---|---|
| Meaning | Carpenter's Level |
| Pronunciation Guide is based on “Pronouncing Astronomical Names,” published in 1943 by the American Astronomical Society. | NOR-muh |
| Genitive The genitive is the Latin possessive form used in star names. For example, Alpha Orionis means “the Alpha of Orion.” | NOR-mee |
| Best Month | July |
| Visibility | Southern |
| Origin | EnlightenmentNamed by Nicolas-Louis de Lacaille in the 1750s; these represent the scientific and artistic tools of the "Age of Reason". |
| Author | LacailleKnown as the "Father of Southern Astronomy," he mapped nearly 10,000 stars and created 14 new constellations in the southern hemisphere. |
| Type | constellation |
| Difficulty | Expert |
| Description | The Set Square and Level was created by Lacaille in the 1750s to represent the precision measuring tools of architects and surveyors — emblems of the rational, ordered approach to the physical world that characterized the Age of Enlightenment. It sits in an exceptionally rich region of the Milky Way near the galactic center between Scorpius and Centaurus. The constellation contains the Norma Cluster (Abell 3627) — one of the most massive galaxy clusters in the nearby universe, located about 220 million light-years away and containing thousands of galaxies. Norma's original alpha star was reassigned to Scorpius, leaving it as one of the few constellations without a traditionally labeled brightest star. |
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Images: NOIRLab/NSF/AURA/E. Slawik · IAU and Sky & Telescope · Stellarium — Full credits →