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Table 3.
Orbital parameter of the triple system HD 218356.
| Parameter | Inner orbit | Outer orbit |
|---|---|---|
| Period, P [days] | 111.15 |
15194 |
| Eccentricity, e | 0.072 |
0.39 |
| T. of periastron, T0 [HJD] | 2 455 289 |
2 469 014 |
| Semimajor axis, a [AU] | 0.79 |
22.1 |
| Arg. of periastron, ω [°] | 55 |
73 |
| Ascending node, Ω [°] | 90 |
153 |
| Inclination [°] | 90 |
157 |
| Companion mass [M⊙] | 0.13 |
0.85 |
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