HD 155233 b is a confirmed exoplanet orbiting around the K Giant star HD 155233 every 885 days some 244.94 light-years away. It has a mass of 636 Earth masses or 2 Jupiter masses and is likely a gas giant similar of that to Jupiter just double the mass. It was discovered by Wittenmyer et al. on October 22nd 2015.[3][4][5]
Discovery | |
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Discovered by | Wittenmyer et al. |
Discovery date | October 19, 2015 |
Detection method | Radial velocity |
Orbital characteristics | |
Semi-major axis | 2.07 ± 0.10 AU (310,000,000 ± 15,000,000 km)[1] |
Eccentricity | 0.04±0.04[2] |
Orbital period (sidereal) | 818.8±12.1 d[2] |
Star | HD 155233 |
Physical characteristics | |
Mass | 2.6±0.3 MJ[2] |
Planetary orbit and mass were refined in 2016.[2]
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