HD 40307 Planetary system The HD 40307 system

| Companion_in_order_from_star | Mass | Semimajor_axis_AU_ | Orbital_period_s_day_ | Eccentricity | Inclination |
|---|---|---|---|---|---|
| b | ≥ 4.0 +0.8 −0.7 M⊕ | 0.0468 +0.0023 −0.0024 | 4.3123 +0.0011 −0.0012 | 0.20 +0.16 −0.14 | — |
| c | ≥ 6.6 +1.1 −1.0 M⊕ | 0.0799 ± 0.0040 | 9.6184 +0.0050 −0.0049 | 0.06 +0.06 −0.11 | — |
| d | ≥ 9.5 +1.7 −1.5 M⊕ | 0.1321 +0.0066 −0.0064 | 20.432 +0.022 −0.024 | 0.07 +0.11 −0.07 | — |
| e | ≥ 3.5 ± 1.4 M⊕ | 0.1886 +0.083 −0.0104 | 34.62 +0.21 −0.20 | 0.15 +0.13 −0.15 | — |
| f | ≥ 5.2 +1.5 −1.6 M⊕ | 0.247 +0.011 −0.014 | 51.76 +0.50 −0.46 | 0.02 +0.20 −0.02 | — |
| g | ≥ 7.1 ± 2.6 M⊕ | 0.600 +0.034 −0.033 | 197.8 +9.0 −5.7 | 0.29 +0.31 −0.29 | — |