Epsilon Piscium
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 kelvins. 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.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 01h 02m 56.60862s |
| Declination | +07° 53′ 24.4855″ |
| Apparent magnitude (V) | 4.27 |
| Characteristics | |
| Spectral type | K0 III |
| U−B color index | +0.691 |
| 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 ± 0.21 mas |
| Distance | 182 ± 2 ly (55.7 ± 0.7 pc) |
| Absolute magnitude (MV) | 0.44 |
| Details | |
| Mass | 2.27 M☉ |
| Radius | 10.9±0.8 R☉ |
| Luminosity | 67.6 L☉ |
| Surface gravity (log g) | 2.99 cgs |
| Temperature | 4,814±40 K |
| Metallicity [Fe/H] | −0.39 dex |
| Age | 2.56 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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