| Discovery | |
|---|---|
| Discovered by | Udry et al. |
| Discovery date | February 1, 1999 |
| Radial velocity | |
| Orbital characteristics | |
| 0.0482 ± 0.0028AU | |
| Eccentricity | 0.034 ± 0.029 |
| 3.509267 ± 0.000064d | |
| 141° | |
| 2,450,830.34 ± 0.48JD | |
| Semi-amplitude | 54.9 ± 1.8m/s |
| Physical characteristics | |
| Mass | >0.467 ± 0.041MJ |
HD 75289 b is anextrasolar planet orbiting the starHD 75289 inVela constellation. It has aminimum mass half that ofJupiter, and it orbits in a very short orbit completing one circular revolution around the star in three and a half days.[1] By studying the starlight scientists have concluded that the planet must have analbedo less than 0.12, rather low for agas giant. Otherwise its reflected light would have been detected.
This planet was discovered by theGeneva Extrasolar Planet Search team usingDoppler spectroscopy.[2]
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