Mensa (IPA: , ) is a southern constellation which was first introduced by Nicolas Louis de Lacaille under the name Mons Mensae (Latin for table mountain). This specifically refers to Table Mountain in South Africa, where Lacaille made important early observations of the southern sky. It contains no bright stars, with Alpha Mensae its brightest star at a barely visible magnitude 5.09, making it the faintest constellation in the entire sky, but it does contain part of the Large Magellanic Cloud (the rest being in Dorado).