.jpg) The exoplanet HD 12661 b (min mass ~2.3 MJ) as rendered by Celestia | |
| Discovery | |
|---|---|
| Discovered by | Fischer et al. |
| Discovery site | California & Carnegie Planet Search  USA |
| Discovery date | April 4, 2001 |
| Radial velocity | |
| Orbital characteristics | |
| 0.834 ± 0.048 AU (124,800,000 ± 7,200,000 km) | |
| Eccentricity | 0.361 ± 0.011 |
| 262.53 ± 0.27 d | |
| 2,450,214.1 ± 2.9 | |
| 296.3±2.6 | |
| Semi-amplitude | 74.19 ± 0.85 |
| Star | HD 12661 |
| Physical characteristics | |
| Mass | >2.34 ± 0.19 MJ |
HD 12661 b is a giant exoplanet two and a half times the mass of Jupiter orbiting around the star HD 12661.[1]