HD 148427

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HD 148427
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ophiuchus
Right ascension 16h 28m 28.151s[1]
Declination –13° 23′ 58.69″[1]
Apparent magnitude (V) 6.903
Characteristics
Spectral type K0IV
Apparent magnitude (B) 7.839
Apparent magnitude (J) 5.299
Apparent magnitude (H) 4.875
Apparent magnitude (K) 4.682
B−V color index 0.936
Astrometry
Proper motion (μ) RA: –37.74 ± 0.76[1] mas/yr
Dec.: 2.81 ± 0.51[1] mas/yr
Parallax (π) 16.94 ± 0.60[1] mas
Distance 193 ± 7 ly
(59 ± 2 pc)
Absolute magnitude (MV) 3.039
Details
Mass 1.45 ± 0.06 M
Radius 3.22 ± 0.2 R
Luminosity 6.06 L
Surface gravity (log g) 3.75 cgs
Temperature 5052 ± 44 K
Metallicity [Fe/H] 0.154 ± 0.04 dex
Age 2.5 Gyr
Other designations
BD–13°4437, HIP 80687, PPM 231736, SAO 159932
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 148427 is a 7th magnitude K-type subgiant star located approximately 193 light years away in the constellation Ophiuchus. Its mass is 45% greater than the Sun, it is three times the size and six times more luminous, although its age is two and a half billion years. In August 2009, it was found to have a planet.[2]

The HD 148427 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥0.96 ± 0.1 MJ 0.93 ± 0.01 331.5 ± 3.0 0.16 ± 0.08

References[edit]

See also[edit]

Coordinates: Sky map 16h 28m 28.1513s, −13° 23′ 58.704″