Planet WASP-18 Ab

Detailed information about planet WASP-18 Ab and its parameters.

Planet

Name
WASP-18 Ab
Planet Status
Confirmed
Discovered in
2009
Update
2024-08-01
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Primary Transit
Mass Meas. Method
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
HD 10069 b, TOI-185 b, TOI-185.01
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
CO
Measurements Detected 2020 - GANDHI S.
H
Measurements Detected 2020 - GANDHI S.
H2O
Measurements Detected 2020 - GANDHI S.
Measurements Detected 2018 - ARCANGELI J.

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Star

Csizmadia et al. (2019) found a companion star to the WASP-18 system, named WASP-18B which is a probable M6.5V dwarf with ~0.1 M⊙ at 3519 AU distance from the transit host star.
The existence of this companion star was later confirmed by Pearson (2019)
Michel & Mugrauer (2024) have confirmed further this companion.

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