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Table 4

System parameters for WASP-90.

1SWASP J210207.70+070323.7
2MASS 21020767+0703224
RA = 21h02m07.70s, Dec = +07°0323.7′′ (J2000)
V mag = 11.7
Rotational modulation <1 mmag (95%)
pm (RA) 10.2 ± 1.4 (Dec), 8.1 ± 4.3 mas/yr

Stellar parameters from spectroscopic analysis

Spectral type F6
Teff (K) 6440 ± 130
log g 4.32 ± 0.09
ξt (km s-1) 1.3 ± 0.2
vmac(km s-1) 4.7 ± 0.3
v sinI (km s-1) 6.0 ± 0.5
[Fe/H] +0.11 ± 0.14
log A(Li) <1.7
Distance (pc) 340 ± 60

Parameters from MCMC analysis

P (d) 3.916243 ± 0.000003
Tc (HJD) (UTC) 245 6235.5639 ± 0.0005
T14 (d) 0.1398 ± 0.0022
T12 = T34 (d) 0.033 ± 0.003
/ 0.0071 ± 0.0002
b 0.841 ± 0.013
i (°) 82.1 ± 0.4
K1 (km s-1) 0.060 ± 0.006
γ (km s-1) 4.361 ± 0.0003
e 0 (adopted) (<0.5 at 3σ)
M (M) 1.55 ± 0.10
R (R) 1.98 ± 0.09
log g (cgs) 4.033 ± 0.029
ρ (ρ) 0.20 ± 0.02
Teff (K) 6430 ± 130
MP (MJup) 0.63 ± 0.07
RP (RJup) 1.63 ± 0.09
log gP (cgs) 2.73 ± 0.06
ρP (ρJ) 0.145 ± 0.027
a (AU) 0.0562 ± 0.0012
TP,A = 0 (K) 1840 ± 50

Errors are 1σ; Limb-darkening coefficients were:
TRAPPIST I + z:
a1 = 0.554, a2 = 0.041, a3 = 0.070, a4 = –0.086
EulerCAM rG:
a1 = 0.476, a2 = 0.422, a3 = –0.226, a4 = 0.020

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