 Artist's conception | |
| Discovery | |
|---|---|
| Discovered by | Udry et al. |
| Discovery site | California, United States |
| Discovery date | 22 August 2005 |
| Doppler Spectroscopy | |
| Orbital characteristics | |
| Apastron | 0.115 AU (17,200,000 km) |
| Periastron | 0.115 AU (17,200,000 km) |
| 0.115 ± 0.096 AU (17,200,000 ± 14,400,000 km) | |
| Eccentricity | 0.00 ± 0.01 |
| 15.56 ± 0.02 d 0.04260 y | |
| 2,453,314.70 ±2.0 | |
| 359±47 | |
| Semi-amplitude | 4.07 ± 0.2 |
| Star | HD 4308 |
| Physical characteristics | |
| Mass | >0.0442 MJ (>14 ME) |
HD 4308 b is a low-mass exoplanet orbiting around HD 4308. It is believed to have almost no orbital eccentricity.[1]