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Table 1
System parameters of HD 189733 and GJ 3470.
| Parameter | Value | Reference |
|---|---|---|
| HD 189733 | ||
| d | 19.775 ± 0.013 pc | Gaia DR2(a) |
| R⋆ | 0.805 ± 0.016 R⊙ | Boyajian et al. (2015) |
| M⋆ | 0.846  M⊙ |
de Kok et al. (2013) |
| Teff | 4875 ± 43 K | Boyajian et al. (2015) |
 |
−0.03 ± 0.05 | Bouchy et al. (2005) |
| a (b) | 0.0332 ± 0.0010 au | Agol et al. (2010) |
 |
1.23 ± 0.03 RJup | Baluev et al. (2015) |
| MP | 1.162  MJup |
de Kok et al. (2013) |
| GJ 3470 | ||
| d | 29.45 ± 0.05 pc | Gaia DR2(a) |
| R⋆ | 0.474 ± 0.014 R⊙ | Pallé et al. (2020) |
| M⋆ | 0.476 ± 0.019 M⊙ | Pallé et al. (2020) |
| Teff | 3725 ± 54 K | Pallé et al. (2020) |
 |
+0.420 ± 0.019 | Pallé et al. (2020) |
| a | 0.0348 ± 0.0014 au | Bonfils et al. (2012) |
| RP | 0.36 ± 0.01 RJup | Pallé et al. (2020) |
| MP | 0.036 ± 0.002 MJup | Pallé et al. (2020) |
Notes. (a) Gaia Collaboration (2018). (b)From a/R⋆ = 8.863(20) by Agol et al. (2010) and R⋆ by Boyajian et al. (2015). (c)From RP /R⋆ = 0.15712(40) by Baluev et al. (2015) and R⋆ by Boyajian et al. (2015).
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