Δ_Piscium
Delta Piscium
Star in the constellation Pisces
Delta Piscium (δ Piscium) is a solitary,[7] orange-hued star in the zodiac constellation of Pisces. It has an apparent visual magnitude of +4.4,[2] so it is bright enough to be faintly visible to the naked eye. Based upon an annual parallax shift of 10.5 mas, it is around 311 light-years (95 parsecs) from the Sun.[6] The visual magnitude of the star is diminished by an interstellar absorption factor of 0.08 due to interstellar dust.[8]
This is an evolved K-type giant star with a stellar classification of K4 IIIb.[3] It has around 1.65 times the mass of the Sun and, at the age of three billion years,[3] has expanded to 44[4] times the Sun's radius. The star is radiating 447 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,963 K.[4]
Because Delta Piscium is positioned near the ecliptic, so it is subject to lunar occultations.[9] It has a magnitude 13.99 visual companion at an angular separation of 135.0 arc seconds on a position angle of 12°, as of 2011.[10]