HD 171028 b
From Infogalactic: the planetary knowledge core
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HD 171028 | |
Constellation | Ophiuchus | |
Right ascension | (α) | 18h 32m 15.4929s |
Declination | (δ) | +06° 56′ 44.714″ |
Distance | 293.5±25.4 ly (90±7.8 pc) |
|
Spectral type | G0V | |
Orbital elements | ||
Semi-major axis | (a) | 1.29 AU |
Periastron | (q) | 0.50 AU |
Apastron | (Q) | 2.08 AU |
Eccentricity | (e) | 0.61 |
Orbital period | (P) | 538±2 d (1.47 y) |
Orbital speed | (υ) | 26.2 km/s |
Argument of periastron |
(ω) | 305±1° |
Time of periastron | (T0) | 2453648.92±1.89 JD |
Semi-amplitude | (K) | ? m/s |
Physical characteristics | ||
Mass | (m) | >1.83 MJ |
Discovery information | ||
Discovery date | July 13, 2007 | |
Discoverer(s) | Santos et al. | |
Discovery method | Doppler spectroscopy | |
Discovery status | Unpublished | |
Database references | ||
Extrasolar Planets Encyclopaedia |
data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 171028 b is a >1.83 MJ exoplanet orbiting very eccentrically around HD 171028. The period is 1.47 years and semi-major axis of 1.29 AU. The Geneva Extrasolar Planet Search team announced the discovery of planet on July 13, 2007.
References
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External links
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Coordinates: 18h 32m 15.4929s, +06° 56′ 44.714″
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