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54 Piscium

54 Piscium

54 Piscium A and the brown dwarf 54 Piscium B (circled).
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]
Distance36.32 ± 0.02 ly
(11.137 ± 0.007 pc)
Absolute magnitude (MV)5.65[5]
Details
54 Psc A
Mass0.76[6] M☉
Radius0.944±0.033[3] R☉
Luminosity0.52[7] L☉
Surface gravity (log g)4.61[8] cgs
Temperature5,062±88[3] K
Metallicity [Fe/H]–0.15[8] dex
Rotation40.2±4.0 d[9]
Age6.4[10] Gyr
54 Psc B
Mass0.051±0.014[11] M☉
Radius0.082±0.006[11] R☉
Temperature810±50[11] 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[12]
Database references
SIMBADdata

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.

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  11. ^ a b c Cite error: The named reference apj654_1_570 was invoked but never defined (see the help page).
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