Planet TOI-3331 Ab

Detailed information about planet TOI-3331 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

TOI-3331 Ab

Planet Status

Confirmed

Discovered in

2022

Publication Status

Published in a refereed paper

Update

2025-09-09

Mass

2.27 (\pm 0.16)

M_J 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Mass*sin(i)

—

Semi-Major Axis

0.03144 (\begin{matrix} + 0.0005 \\ - 0.00055 \end{matrix})

AU 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Orbital Period

2.0180231 (\pm 4.4e-06)

day 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Eccentricity

0.0 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Angular distance

—

ω

—

T_peri

—

Radius

1.158 (\pm 0.043)

R_J 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Inclination

85.4 (\pm 0.38)

deg 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2459371.653 (\pm 0.0002)

JD 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Secondary transit

—

λ

—

Impact Parameter b

0.57 (\pm 0.03)

1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Time V_r=0

—

Velocity Semiamplitude K

360.0 (\pm 21.0)

m/s 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Calculated temperature

1488.0 (\pm 30.0)

K 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

TOI-3331 A

Distance

217.193 (\begin{matrix} + 2.748 \\ - 2.681 \end{matrix})

pc 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Spectral type

G5V

Apparent magnitude V

11.64

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.016 (\begin{matrix} + 0.047 \\ - 0.052 \end{matrix})

M_Sun 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Age

2.1 (\begin{matrix} + 2.7 \\ - 1.5 \end{matrix})

Gyr 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Effective temperature

5609.0 (\begin{matrix} + 92.0 \\ - 87.0 \end{matrix})

K 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Radius

0.952 (\pm 0.029)

R_Sun 1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Metallicity [Fe/H]

0.148 (\pm 0.084)

1 publication

The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:05:18.0

Dec₂₀₀₀

-34:06:26.0

Alternate Names

Yee et al. (2022) report a late K dwarf companion star (Gaia DR3 4042548120990244096, G = 14.26) 2.663 arcseconds away (580 AUs at 217 pc) whereas Eeles-Nolle & Armstrong (2025) detect an additional companion, likely a low-mass M dwarf or even a white dwarf (Gaia DR3 4042548047974102400, G = 18.37) 42.68 arcseconds away (9,260 AUs at 217 pc) .

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