Free Access

Table 1

Parameters of the HD 189733b system.

Parameter Symbol [unit] Value

The star
Effective temperature Teff [ K ] 5040 ± 50
Radius Rs [R] 0.756 ± 0.018
Mass Ms [M] 0.806 ± 0.048
Surface gravity log (g [ cm s-2 ]) 4.587
Metallicity [M/H] [dex] –0.03 ± 0.08
The planet
Radius ratio Rp/Rs 0.15463 ± 0.00022
Orbital semi-major axis a [Rs] 8.81 ± 0.06
Orbital inclination i [degrees] 85.58 ± 0.06
Orbital period P [days] 2.21857567
Transit impact parameter b [Rs] 0.680 ± 0.005
Transit epoch (BJD) T0 [days] 2 454 279.436714

Notes. The transit epoch and the period are from Agol et al. (2010) and all the other values are from Torres et al. (2008).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.