Parameters of the TU UMa system from the combined analysis of the spectroscopic orbit of Liška et al. (2016a; their Model 2) and the proper motion anomaly vectors.
|Parallax from GDR2 ϖ||1.592 ± 0.063 mas|
|Mass of RRL m1||0.6 ± 0.1 M⊙|
|Parameters from Liška et al. (2016a)|
|Orbital period P||8499 ± 29 d|
|Eccentricity e||0.686 ± 0.025|
|Arg. of periastron ω||184 ± 2 deg|
|vr amplitude K1||5.2 ± 0.4 km s−1|
|vr at Hip epoch||+0.33 ± 0.16 km s−1|
|vr at GDR2 epoch||+0.83 ± 0.14 km s−1|
|μHip||[+ 0.2±1.1, +3.0±1.1] mas a−1|
|μG2||[+ 0.75±0.12, +0.30±0.14] mas a−1|
|Parameters from present analysis|
|Inclination i||160 ± 6 deg|
|Semimajor axis a||11.18 ± 0.51 au|
|Ang. semimajor axis θ||17.8 ± 1.1 mas|
|Long. of asc. node Ω||358 ± 23 deg|
|Mass of secondary m2||1.98 ± 0.33 M⊙|
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