54 Piscium
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 39m 21.80539s |
| Declination | +21° 15′ 01.7129″ |
| Apparent magnitude (V) | 5.88 |
| Characteristics | |
| Spectral type | K0V / T7.5V |
| U−B color index | +0.57 |
| B−V color index | +0.85 |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | −33.07±0.13 km/s |
| Proper motion (μ) | RA: −461.948 mas/yr Dec.: −369.624 mas/yr |
| Parallax (π) | 90.0248±0.482 mas |
| Distance | 36.2 ± 0.2 ly (11.11 ± 0.06 pc) |
| Absolute magnitude (MV) | 5.65 |
| Details | |
| 54 Psc A | |
| Mass | 0.848±0.040 M☉ |
| Radius | 0.862±0.008 R☉ |
| Luminosity | 0.527±0.007 L☉ |
| Surface gravity (log g) | 4.52±0.02 cgs |
| Temperature | 5,297±31 K |
| Metallicity [Fe/H] | +0.14±0.02 dex |
| Rotation | 40.2±4.0 d |
| Age | 10.0±3.5 Gyr |
| 54 Psc B | |
| Mass | 48.1+4.4 −4.0 MJup |
| Radius | 0.81±0.02 RJup |
| Temperature | 809+15 −16 K |
| Other designations | |
| 54 Psc, NSV 245, BD+20°85, FK5 276, GJ 27, HD 3651, HIP 3093, HR 166, SAO 74175, LHS 1116, LTT 10224 | |
| Database references | |
| SIMBAD | data |
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54 Piscium is an orange dwarf star approximately 36 light-years away in the constellation of Pisces. In 2003, an extrasolar planet was confirmed to be orbiting the star, and in 2006, a brown dwarf was also discovered orbiting it.