update: 4 May 2005
| Name: | 55 CnC e | 55 CnC b | 55 CnC c | 55 CnC d |
| M.sini: | 0.045 ± 0.01 MJ = 14.2 ± 2.95 ME |
0.784 ± 0.09 MJ | 0.217 ± 0.04 MJ | 3.92 ± 0.5 MJ |
| Semi-major axis: | 0.038 ± 0.001 AU | 0.115 ± 0.003 AU | 0.240 ± 0.005 AU | 5.257 ± 0.9 AU |
| Orbital period: | 2.81 ± 0.002 d. | 14.67 ± 0.0006 d. | 43.93 ± 0.021 d. | 4517.4 ± 77.8 d. |
| Eccentricity: | 0.174 ± 0.127 | 0.0197 ± 0.01 | 0.44 ± 0.08 | 0.327 ± 0.28 |
| Omega (deg): | 261.65 ± 41 | 131.49 ± 33 | 244.39 ± 11 | 234.73 ± 7 |
| T_peri (JD-2450000): | 3295.31 ± 0.32 | 3021.08 ± 0.01 | 3028.63 ± 0.25 | 2837.69 ± 68.87 |
| Inclination: | - | - | - |