Epsilon Piscis Austrini

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Epsilon Piscis Austrini
Diagram showing star positions and boundaries of the Piscis Austrinus constellation and its surroundings
Cercle rouge 100%.svg

Location of ε Piscis Austrini (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Piscis Austrinus
Right ascension 22h 40m 39.33s
Declination −27° 02' 37.0"
Apparent magnitude (V) +4.18
Distance 744 ly
(228 pc)
Spectral type B8V
Other designations
ε Piscis Austrini, ε PsA, Epsilon PsA, 18 Piscis Austrini, CPD−27° 7442, FK5 854, GC 31646, HD 214748, HIP 111954, HR 8628, PPM 274114, SAO 191318.

Epsilon Piscis Austrini (Epsilon PsA, ε Piscis Austrini, ε PsA) is a blue B-type main sequence star with an apparent magnitude of +4.18. It is approximately 744 light years from Earth.

Epsilon Piscis Austrini is moving through the Galaxy at a speed of 18.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,900 and 28,100 light years from the center of the Galaxy.[1]


In Chinese, 羽林軍 (Yǔ Lín Jūn), meaning Palace Guard, refers to an asterism consisting of ε Piscis Austrini, 29 Aquarii, 35 Aquarii, 41 Aquarii, 47 Aquarii, 49 Aquarii, λ Piscis Austrini, HD 212448, 21 Piscis Austrini, 20 Piscis Austrini, υ Aquarii, 68 Aquarii, 66 Aquarii, 61 Aquarii, 53 Aquarii, 50 Aquarii, 56 Aquarii, 45 Aquarii, 58 Aquarii, 64 Aquarii, 65 Aquarii, 70 Aquarii, 74 Aquarii, τ2 Aquarii, τ1 Aquarii, δ Aquarii, 77 Aquarii, 88 Aquarii, 89 Aquarii, 86 Aquarii, 101 Aquarii, 100 Aquarii, 99 Aquarii, 98 Aquarii, 97 Aquarii, 94 Aquarii, ψ3Aquarii, ψ2Aquarii, ψ1Aquarii, 87 Aquarii, 85 Aquarii, 83 Aquarii, χ Aquarii, ω1 Aquarii and ω2 Aquarii. Consequently, ε Piscis Austrini itself is known as 羽林軍八 (Yǔ Lín Jūn bā, English: the Eighth Sixth Star of Palace Guard.)[2]