Open Access
Table 1
Parameters of the HD 209458 system.
| Parameter | Value | Reference |
|---|---|---|
| α [J2000] | 22:03:10.77 | Gaia DR2 (a) |
| δ [J2000] | +18:53:03.5 | Gaia DR2 (a) |
| G | 7.5087 (4) mag | Gaia DR2 (a) |
| J | 6.59 (2) mag | Skrutskie et al. (2006) |
| R⋆(b) | 1.155  R⊙ |
Torres et al. (2008) |
| K⋆ | 84.67(70) m s−1 | Torres et al. (2008) |
| vsys | –14.7652 (16) km s−1 | Mazeh et al. (2000) |
| a | 0.04707  au |
Torres et al. (2008) |
| e cosω | 0.00004 (33) | Crossfield et al. (2012) |
| Porb | 3.52474859 (38) d | Knutson et al. (2007) |
| T0 (HJD) | 2 452 826.628521 (87) d | Knutson et al. (2007) |
| i | 86.71(5) deg | Torres et al. (2008) |
| RP (b) | 1.359  RJup |
Torres et al. (2008) |
| KP | 140(10) km s−1 | Snellen et al. (2010) |
| vwind | –5.2  km s−1 |
This work |
Notes. The numbers in parentheses in the middle column correspond to the error bar on the last significant digits. (a) Gaia Collaboration (2018). (b) Equatorial radius.
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