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bright star in the constellation Piscis Austrinis, 1594, from Arabic Fum al Hut "the Fish's Mouth," which describes its position in the imaginary star-picture.
the 17th star (excluding the Sun) in order of apparent brightness. It is used in navigation because of its conspicuous place in a sky region otherwise lacking in bright stars. It lies in the southern constellation Piscis Austrinus, about 25 light-years from the Earth. A white star, it has an apparent magnitude of 1.18. A sixth-magnitude companion star is yellow.