| HD 100777 b / Laligurans | |
| Discoverer: | Dominique Naef et al. |
| Discovery Site: | Chile |
| Discovered: | March 5, 2007 |
| Discovery Method: | Doppler spectroscopy (HARPS) |
| Apsis: | astron |
| Aphelion: | 1.4AU |
| Perihelion: | 0.659AU |
| Semimajor: | 1.03± |
| Eccentricity: | 0.36 ± 0.02 |
| Period: | 383.7 ± 1.2 d 1.050 y |
| Avg Speed: | 29.3 |
| Time Periastron: | 2,453,456.2 ± 2.3 |
| Arg Peri: | 202.7 ± 3.0 |
| Semi-Amplitude: | 34.9 ± 0.8 |
| Star: | HD 100777 |
| Mass: | >1.17 ± 0.02 |
HD 100777 b, formally named Laligurans,[1] is an extrasolar planet located approximately 172 light-years away in the constellation of Leo, orbiting the star HD 100777. It has a minimum mass about 1.17 times greater than Jupiter and takes about 384 days to orbit its star. It has a semi-major axis of 1.03 AU and a moderately eccentric orbit around its star. The velocity of the orbit is 29.3 km/s. Dominique Naef discovered this planet in March 2007 by using HARPS spectrograph located in Chile.