Arneb was a star visible from Ten Forward while the USS Enterprise-D was near 'aucdet IX in 2365. Wesley Crusher pointed it out to Guinan when she asked him what he saw looking out of the viewport. (TNG: "The Child")
According to the Star Trek Encyclopedia, 4th ed., vol. 1, p. 46, Arneb (Alpha Leporis) was one of the brightest stars in Earth's night sky and was located in the constellation Lepus. The star is about 2200 light years away from Sol.