Constellation Piscis Austrinus | ||
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People also search for Eta Piscis Austrini, Mu Piscis Austrini | ||
Theta Piscis Austrini (Theta PsA, θ Piscis Austrini, θ PsA) is multiple star system in constellation of Piscis Austrinus, with an apparent magnitude of +5.02. The primary component is a white A-type main sequence star. It is approximately 290 light years from Earth.
Theta Piscis Austrini is moving through the Galaxy at a speed of 21.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,600 and 38,300 light years from the center of the Galaxy.
Theta Piscis Austrini came closest to the Sun 2.7 million years ago when it had brightened to magnitude 4.54 from a distance of 256 light years.
Naming
In Chinese, 天錢 (Tiān Qián), meaning Celestial Money, refers to an asterism consisting of refers to an asterism consisting of θ Piscis Austrini, 13 Piscis Austrini, ι Piscis Austrini, μ Piscis Austrini and τ Piscis Austrini. Consequently, θ Piscis Austrini itself is known as 天錢二 (Tiān Qián èr, English: the Second Star of Celestial Money.)