Theta Piscium
 Location of θ Piscium(circled) |
|
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Pisces |
| Right ascension | 23h 27m 58.0951s |
| Declination | +6° 22′ 44.372″ |
| Apparent magnitude (V) | 4.27 |
| Characteristics | |
| Spectral type | K1 III |
| U−B color index | +1.00 |
| B−V color index | +1.062 |
| Astrometry | |
| Radial velocity (Rv) | +6.05 ± 0.19 km/s |
| Proper motion (μ) |
RA: -123.83 mas/yr Dec.: -43.26 mas/yr |
| Parallax (π) | 20.54 ± 0.80 mas |
| Distance | 159 ± 6 ly (49 ± 2 pc) |
| Details | |
| Mass | 1.54 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
Theta Piscium (Theta Psc, θ Piscium, θ Psc) is a star approximately 159 light years away from Earth in the constellation Pisces. It is an orange-red star of the spectral type K1III, meaning it is a normal giant star with a surface temperature of 3,500 to 5,000 kelvins, and is brighter yet cooler than the Sun.
In Chinese, 霹靂 (Pī Lì), meaning Thunderbolt, refers to an asterism consisting of refers to an asterism consisting of θ Piscium, β Piscium, γ Piscium, ι Piscium and ω Piscium. Consequently, θ Piscium itself is known as 霹靂三 (Pī Lì sān, English: the Third Star of Thunderbolt.)
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