Planet TOI-3331 Ab

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

Planet parameters Publications Observability Predictor

Planet

Name
TOI-3331 Ab
Mass
2.27 ( ± 0.16 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.03144 ( +0.0005 -0.00055 ) AU
Orbital Period
2.0180231 ( ± 4.4e-06 ) day
Eccentricity
0.0
ω
—
Tperi
—
Radius
1.158 ( ± 0.043 ) RJ
Inclination
85.4 ( ± 0.38 ) deg
Primary transit
2459371.653 ( ± 0.0002 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.57 ( ± 0.03 )
Time Vr=0
—
Velocity Semiamplitude K
360.0 ( ± 21.0 ) m/s
Calculated temperature
1488.0 ( ± 30.0 ) K
Measured temperature
—
Hottest point longitude
—
Surface gravity log(g/gH)
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

See also Planets in Binaries webpage.

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Star

Name
TOI-3331 A
Distance
217.193 ( +2.748 -2.681 ) pc
Spectral type
G5V
Apparent magnitude V
11.64
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.016 ( +0.047 -0.052 ) MSun
Age
2.1 ( +2.7 -1.5 ) Gyr
Effective temperature
5609.0 ( +92.0 -87.0 ) K
Radius
0.952 ( ± 0.029 ) RSun
Metallicity [Fe/H]
0.148 ( ± 0.084 )
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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