Iota Piscis Austrini

Iota Piscis Austrini
Diagram showing star positions and boundaries of the Piscis Austrinus constellation and its surroundings


Location of ι Piscis Austrini (circled)

Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Piscis Austrinus
Right ascension 21h 44m 56.79s
Declination −33° 01' 32.0"
Apparent magnitude (V) +4.35
Distance205 ly
(63 pc)
Spectral typeB9.5V
Other designations
ι  Piscis Austrini, ι PsA, Iota PsA, 9 Piscis Austrini, CCDM J21449-3302A, CPD −33° 6184, FK5 814, GC 30439, HD 206742, HIP 107380, HR 8305, IDS 21390-3329 A, PPM 301781, SAO 213258, WDS J21449-3302A

Iota Piscis Austrini (Iota PsA, ι Piscis Austrini, ι PsA) is multiple star system in constellation of Piscis Austrinus, with an apparent magnitude of +4.35. The primary component is a white B-type subgiant. It is approximately 205 light years from Earth.

Iota Piscis Austrini is moving through the Galaxy at a speed of 29.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 18,400 and 24,300 light years from the center of the Galaxy.[1]

Naming

In Chinese, 天錢 (Tiān Qián), meaning Celestial Money, refers to an asterism consisting of refers to an asterism consisting of ι Piscis Austrini 13 Piscis Austrini, θ Piscis Austrini, μ Piscis Austrini and τ Piscis Austrini. Consequently, ι Piscis Austrini itself is known as 天錢三 (Tiān Qián sān, English: the Third Star of Celestial Money.)[2]

References

  1. ↑ Iota Piscis Austrini (HIP 107380)
  2. ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 5 日
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