Epsilon Piscium
 Location of ε Piscium(circled) |
|
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Pisces |
| Right ascension | 01h 02m 56.61s |
| Declination | +07° 53′ 24.5″ |
| Apparent magnitude (V) | 4.28 |
| Characteristics | |
| Spectral type | K0 III |
| U−B color index | +0.685 |
| B−V color index | +0.952 |
| Astrometry | |
| Radial velocity (Rv) | +7.47 ± 0.20 km/s |
| Proper motion (μ) |
RA: –80.17 ± 0.19 mas/yr Dec.: +25.59 ± 0.14 mas/yr |
| Parallax (π) | 17.94 ± 0.21mas |
| Distance | 182 ± 2 ly (55.7 ± 0.7 pc) |
| Details | |
| Mass | 2.27 M☉ |
| Radius | 10.9 ± 0.8 R☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
Epsilon Piscium (Epsilon Psc, ε Piscium, ε Psc) is the Bayer designation for a star approximately 182 light-years (56 parsecs) away from the Earth, in the constellation Pisces. It is a yellow-orange star of the G9 III or K0 III spectral type, meaning it has a surface temperature around 5,000 Kelvin. This is a normal giant star, slightly cooler in surface temperature, yet brighter and larger than the Sun. It is a suspected occultation double, with both stars having the same magnitude, separated by 0.25 arcsecond.
In Chinese, 外屏 (Wài Píng), meaning Outer Fence, refers to an asterism consisting of refers to an asterism consisting of ε Piscium, δ Piscium, ζ Piscium, μ Piscium, ν Piscium, ξ Piscium and α Piscium. Consequently, ε Piscium itself is known as 外屏二 (Wài Píng èr, English: the Second Star of Outer Fence.) In Japanese, 悠翔星 (Haruto-boshi), meaning "Soaring Forever Star," refers to the Japanese description of ε Piscium.
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