Planet WASP-129 Ab

Detailed information about planet WASP-129 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

WASP-129 Ab

Planet Status

Confirmed

Discovered in

2016

Publication Status

Published in a refereed paper

Update

2025-09-09

Mass

1.0 (\begin{matrix} + 0.1 \\ - 0.1 \end{matrix})

M_J

Mass*sin(i)

1.0 (\begin{matrix} + 0.1 \\ - 0.1 \end{matrix})

M_J 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Semi-Major Axis

0.0628 (\pm 0.0007)

AU 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Orbital Period

5.748145 (\pm 1e-06)

day 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Eccentricity

0.096 (\begin{matrix} + 0.0 \\ - 0.096 \end{matrix})

1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Angular distance

—

ω

—

T_peri

—

Radius

0.93 (\begin{matrix} + 0.03 \\ - 0.03 \end{matrix})

R_J 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Inclination

87.7 (\pm 0.2)

deg 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2457027.4373 (\pm 0.0002)

JD 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Secondary transit

—

λ

—

Impact Parameter b

0.62 (\pm 0.02)

1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Time V_r=0

—

Velocity Semiamplitude K

110.0 (\pm 10.0)

m/s 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Calculated temperature

1100.0 K 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

TOI-752.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

WASP-129 A

Distance

246.0 (\pm 7.0)

pc 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Spectral type

G1V

Apparent magnitude V

12.3

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.0 (\pm 0.03)

M_Sun 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Age

1.0 (\pm 0.9)

Gyr 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Effective temperature

5900.0 (\pm 100.0)

K 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Radius

0.9 (\pm 0.02)

R_Sun 1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Metallicity [Fe/H]

0.15 (\pm 0.09)

1 publication

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

11:45:12.0

Dec₂₀₀₀

-42:03:50.0

Alternate Names

TOI-752

Michel & Mugrauer (2024) report a white dwarf companion 1368 AUs away (Gaia DR3 5380888753900786048, G = 18.03), whereas Eeles-Nolle et al. (2025) detect a closer and fainter companion (Gaia DR3 5380888380237386880, G = 19.78) 4.34 arcseconds away (1067 AUs at 226 pc), either another white dwarf or a very low-mass M dwarf.

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