HD 171028

HD 171028 is a yellow main-sequence star in the constellation of Ophiuchus. The apparent magnitude is +8.31, visible in good binoculars. Unlike most planet-harboring stars, it does not have a Hipparcos number, though the distance was estimated at 90±7.8 parsecs. In the summer of 2007, a planet was discovered orbiting this star.[3]

The HD 171028 planetary system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥1.98 MJ 1.32 550±3 0.59±0.01
HD 171028
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ophiuchus
Right ascension 18h 32m 15.4933s[1]
Declination 06° 56 44.6858[1]
Apparent magnitude (V) 8.31
Characteristics
Spectral type G0V
Astrometry
Proper motion (μ) RA: −42.869±0.084[1] mas/yr
Dec.: −14.705±0.077[1] mas/yr
Parallax (π)8.9274 ± 0.0497[1] mas
Distance365 ± 2 ly
(112.0 ± 0.6 pc)
Details
Other designations
BD+06 3833, TYC 458-1450-1, 2MASS J18321548+0656446[2]
Database references
SIMBADdata

See also

  • List of extrasolar planets

References


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