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54 Piscium
Orange dwarf star in the constellation Pisces / From Wikipedia, the free encyclopedia
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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.
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Pisces |
Right ascension | 00h 39m 21.80551s[1] |
Declination | +21° 15′ 01.7161″[1] |
Apparent magnitude (V) | 5.88[2] |
Characteristics | |
Spectral type | K0V[3] / T7.5V |
U−B color index | +0.57[2] |
B−V color index | +0.85[2] |
Variable type | Suspected |
Astrometry | |
Radial velocity (Rv) | −34.2[4] km/s |
Proper motion (μ) | RA: −462.056[1] mas/yr Dec.: −369.814[1] mas/yr |
Parallax (π) | 89.7891 ± 0.0581 mas[1] |
Distance | 36.32 ± 0.02 ly (11.137 ± 0.007 pc) |
Absolute magnitude (MV) | 5.65[5] |
Details | |
54 Psc A | |
Mass | 0.76[6] M☉ |
Radius | 0.944±0.033[3] R☉ |
Luminosity | 0.52[7] L☉ |
Surface gravity (log g) | 4.61[8] cgs |
Temperature | 5,062±88[3] K |
Metallicity [Fe/H] | –0.15[8] dex |
Rotation | 40.2±4.0 d[9] |
Age | 6.4[10] Gyr |
54 Psc B | |
Mass | 0.051±0.014[11] M☉ |
Radius | 0.082±0.006[11] R☉ |
Temperature | 810±50[11] K |
Other designations | |
Database references | |
SIMBAD | data |
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