Mensa
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Mensa is a faint constellation located in the southern sky that is relatively obscure and contains no particularly bright stars. It was named after Table Mountain in South Africa and is primarily of interest to astronomers and stargazers studying the southern celestial hemisphere.
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The constellation Mensa as seen by the naked eye
Mensa is a constellation in the Southern Celestial Hemisphere near the south celestial pole, one of fourteen constellations drawn up in the 18th century by French astronomer Nicolas-Louis de Lacaille. Its name is Latin for table, though it originally commemorated Table Mountain and was known as "Mons Mensae". One of the eighty-eight constellations designated by the International Astronomical Union (IAU), it covers a keystone-shaped wedge of sky 153.5 square degrees in area. Other than the south polar constellation of Octans, it is the most southerly of constellations and is observable only south of the 5th parallel of the Northern Hemisphere.