Table 1.
Parameters of the V1334 Cyg system from the combined analysis of the spectroscopic orbit of Evans (2000) and the proper motion anomaly vectors.
| Adopted parameters | |
| Parallax from GDR2 ϖ | 1.180±0.066 mas (1.388±0.015 mas) |
| Mass from P-M m1 | 4.6±0.7 M⊙ (4.29±0.13 M⊙) |
| Parameters from Evans (2000) | |
| Orbital period P | 1937.5±2.1 d (1932.8±1.8 d) |
| Eccentricity e | 0.197±0.009 (0.233±0.001) |
| Arg. of periastron ω | 226.4±2.9 deg (229.8±0.3 deg) |
| vr amplitude K1 | 14.10.1 km s−1 (14.1680.014 km s−1) |
| vr at Hip epoch | +9.86 ± 0.41 km s−1 |
| vr at GDR2 epoch | −9.66 ± 1.33 km s−1 |
| PMa vectors | |
| μHip | [−1.36±0.29, +0.26±0.33] mas a−1 |
| μG2 | [+ 2.90±0.12, +2.73±0.14] mas a−1 |
| Parameters from present analysis | |
| Inclination i | 118±6 deg (124.94±0.09 deg) |
| Semimajor axis a | 6.18±0.21 au (6.16±0.07 au) |
| Ang. semimajor axis θ | 7.3±0.5 mas (8.54±0.04 mas) |
| Long. of asc. node Ω | 208±6 deg (213.17±0.35 deg) |
| Mass of secondary m2 | 3.80±0.57 M⊙ (4.04±0.05 M⊙) |
Notes. The high accuracy values derived by Gallenne et al. (2018) are given for each parameter in parentheses.