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Table 3
Parameters of the best solution for the orbit of BC around A.
| Orbital element | Value | |
|
|
||
| Date of periastron T0 | 2 459 727.9 |
|
| (2022 May 28) | ||
| Period P (years) | 44.4 |
|
| Semi-major axis a (mas) | 1111.6 |
|
| Semi-major axis a (AU) | 8.58 |
|
| Eccentricity e | 0.5200 |
|
| Argument of periastron ω (°) | 147.61 |
|
| PA of ascending node Ω (°) | 26.80 |
|
| Inclination i (°) | 54.75 |
|
| System mass MA + MB + MC (mas3/yr2) | (6.98 ± | 0.02) × 105 |
| System mass MA + MB + MC (M⊙) | 0.321 |
|
| Mass ratio MC/MB | 0.92 | ± 0.01 |
| Mean absolute difference | ||
| observed–predicted (mas) | 7.9 | |
| Reduced χ2 | 2.6 | |
|
|
||
| Mass of A MA (M⊙) | 0.172 | ± 0.010 |
| Mass of B MB (M⊙) | 0.077 | ± 0.005 |
| Mass of C MC (M⊙) | 0.071 | ± 0.004 |
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