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Epsilon Piscium
Star in the constellation Pisces / From Wikipedia, the free encyclopedia
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,[2] 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.[8] It is a suspected occultation double, with both stars having the same magnitude, separated by 0.25 arcsecond.[9]
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Pisces |
Right ascension | 01h 02m 56.60862s[2] |
Declination | +07° 53′ 24.4855″[2] |
Apparent magnitude (V) | 4.27[3] |
Characteristics | |
Spectral type | K0 III[4] |
U−B color index | +0.691[3] |
B−V color index | +0.952[4] |
Astrometry | |
Radial velocity (Rv) | +7.47±0.20[4] km/s |
Proper motion (μ) | RA: −80.17±0.19[2] mas/yr Dec.: +25.59±0.14[2] mas/yr |
Parallax (π) | 17.94 ± 0.21 mas[2] |
Distance | 182 ± 2 ly (55.7 ± 0.7 pc) |
Absolute magnitude (MV) | 0.44[4] |
Details | |
Mass | 2.27[4] M☉ |
Radius | 10.9±0.8[5] R☉ |
Luminosity | 67.6[6] L☉ |
Surface gravity (log g) | 2.99[7] cgs |
Temperature | 4,814±40[6] K |
Metallicity [Fe/H] | −0.39[7] dex |
Age | 2.56[6] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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