Open Access
Table 1
Stellar parameters of interest for HD 176986.
| Parameter | HD 176986 | Ref |
|---|---|---|
| α | 19:03:05.872 | 1 |
| δ | −11:02:38.131 | 1 |
| Parallax (mas) | 35.858 ± 0.022 | 2 |
| d (pc) | 27.86 ± 0.02 | 2 |
| μα cos δ (mas yr−1) | −126.947 ± 0.023 | 2 |
| μδ (mas yr−1) | −235.938 ± 0.019 | 2 |
| Teff (K) | 4931 ±77 | 3 |
| log10 g (cgs) | 4.44 ± 0.17 | 3 |
| Spectral Type | K2.5V | 4 |
| RV (km s−1) | 37.42 ± 0.14 | 2 |
| [Fe/H] (dex) | 0.03 ± 0.05 | 3 |
| M* (M⊙) | 0.789 ± 0.019 | 3 |
| R* (R⊙) | 0.782 ± 0.035 | 5 |
| log10R'HK | −4.90 ± 0.04 | 6 |
| B (mag) | 9.39 ± 0.03 | 7 |
| V (mag) | 8.45 ± 0.01 | 7 |
| L(L⊙) | 0.331 ± 0.027 | 8 |
| Age (Gyr) | 4.3 ± 4.0 | 3 |
| Inner optimistic HZ (AU) | 0.446 ± 0.018 | 0 |
| Inner conservative HZ (AU) | 0.591 ± 0.024 | 0 |
| Outer conservative HZ (AU) | 1.046 ± 0.043 | 0 |
| Outer optimistic HZ (AU) | 1.099 ± 0.045 | 0 |
Notes. 0 - this work, 1 - (Gaia Collaboration 2020), 2 -(Gaia Collaboration 2021), 3 - (Tsantaki et al. 2013), 4 - (Gray et al. 2006), 5 - (Boyajian et al. 2012), 6 - (Suárez Mascareño et al. 2018), 7 - (Høg et al. 2000), 8 - (Sousa et al. 2008).
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