HD 171028

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HD 171028
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ophiuchus
Right ascension 18h 32m 15.4929s
Declination +06° 56′ 44.714″
Apparent magnitude (V) +8.31
Distance 293.5±25.4 ly
(90±7.8 pc)
Spectral type G0V
Other designations
BD+06º3833, GSC 00458-01450, SAO 123612
Database references
Extrasolar Planets

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.

The HD 171028 planetary system
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
b >1.83 MJ 1.29 538 ± 2 0.61

See also[edit]


Coordinates: Sky map 18h 32m 15.4929s, +06° 56′ 44.714″