| Discovery | |
|---|---|
| Discovered by | Dominique Naefet al.[1] |
| Discovery site | Chile |
| Discovery date | March 5, 2007 |
| Doppler spectroscopy (HARPS) | |
| Orbital characteristics | |
| Apastron | 1.40 AU (209,000,000 km) |
| Periastron | 0.659 AU (98,600,000 km) |
| 1.03 ± 0.03 AU (154,100,000 ± 4,500,000 km) | |
| Eccentricity | 0.36 ± 0.02 |
| 383.7 ± 1.2d 1.050y | |
Averageorbital speed | 29.3 |
| 2,453,456.2 ± 2.3 | |
| 202.7 ± 3.0 | |
| Semi-amplitude | 34.9 ± 0.8 |
| Star | HD 100777 |
| Physical characteristics | |
| Mass | >1.17 ± 0.02MJ |
HD 100777 b, formally namedLaligurans,[2] is anextrasolar planet located approximately 172light-years away in theconstellation ofLeo, orbiting thestarHD 100777. It has a minimum mass about 1.17 times greater thanJupiter and takes about 384 days to orbit its star. It has asemi-major axis of 1.03AU and a moderatelyeccentric orbit around its star. Thevelocity of the orbit is 29.3km/s.Dominique Naef discovered this planet in March 2007 by usingHARPSspectrograph located inChile.[1]
 | This exoplanet related article is astub. You can help Wikipedia byadding missing information. |
