HD 180902 b
HD 180902 b is an extrasolar planet orbiting the K-type star HD 180902 approximately 342 light years away in the constellation Sagittarius.
| Discovery | |
|---|---|
| Discovered by | Johnson et al. |
| Discovery site | Keck Observatory |
| Discovery date | 2010 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 1.40±0.11 AU | |
| Eccentricity | 0.107±0.022 |
| 510.9±1.5 d | |
| 2455055±17 JD | |
| 181±12 º | |
| Semi-amplitude | 34.25±0.84 m/s |
| Star | HD 180902 |
| Physical characteristics | |
Mean radius | 1.221 RJ |
| Mass | ≥1.685±0.041 MJ |
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