Planet WASP-81 b

Detailed information about planet WASP-81 b and its parameters.

Planet parameters Publications Observability Predictor Exo3D

Planet

Name
WASP-81 b
Planet Status
Confirmed
Discovered in
2016
Publication
Status
—
Update
2021-07-27
Mass
0.729 ( +0.036 -0.035 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.03908 ( +0.0007 -0.00072 ) AU
Orbital Period
2.7164762 ( ± 2.3e-06 ) day
Eccentricity
0.0 ( +0.066 -0.0 )
Angular distance
—
ω
—
Tperi
—
Radius
1.429 ( +0.051 -0.046 ) RJ
Inclination
88.69 ( +0.088 -0.092 ) deg
Detection Method
Primary Transit
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary Transit
Primary transit
2456195.57462 ( +0.00023 -0.0002 ) JD
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
100.8 ( +3.4 -3.3 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
WASP-81
Distance
410.0 ( ± 70.0 ) pc
Spectral type
G1
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.08 ( +0.059 -0.058 ) MSun
Age
—
Effective temperature
5870.0 ( ± 120.0 ) K
Radius
1.283 ( +0.04 -0.037 ) RSun
Metallicity [Fe/H]
-0.36 ( ± 0.14 )
Detected Disc
—
Magnetic Field
—
RA2000
20:16:49.9
Dec2000
+03:17:38.7
Alternate Names
—

Triaud et al. (2016) : WASP-81A has a visual companion, however the pair is most likely unrelated.

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