Planet TOI-402 Ac

Detailed information about planet TOI-402 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
TOI-402 Ac
Planet Status
Confirmed
Discovered in
2019
Publication
Status
Published in a refereed paper
Update
2025-02-11
Mass
0.02136 ( +0.0041 -0.0035 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.1235 ( +0.002 -0.0017 ) AU
Orbital Period
17.180546 ( +2.1e-05 -2.6e-05 ) day
Eccentricity
0.096 ( +0.059 -0.045 )
Angular distance
—
ω
56.63 ( +78.0 -63.0 ) deg
Tperi
—
Radius
0.22536 ( +0.00767 -0.00669 ) RJ
Inclination
88.41 ( ± 0.07 ) deg
Detection Method
Primary Transit
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary Transit
Primary transit
2458414.55 ( ± 0.0012 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.876 ( ± 0.01 )
Time Vr=0
—
Velocity Semiamplitude K
1.9 ( ± 0.36 ) 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

See also Planets in Binaries webpage.

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Star

Name
TOI-402 A
Distance
44.86 pc
Spectral type
K0V
Apparent magnitude V
9.1
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.851 ( +0.042 -0.034 ) MSun
Age
7.5 ( +4.2 -4.4 ) Gyr
Effective temperature
5131.0 ( ± 74.0 ) K
Radius
0.839 ( +0.0018 -0.0016 ) RSun
Metallicity [Fe/H]
0.03 ( ± 0.04 )
Detected Disc
—
Magnetic Field
—
RA2000
02:27:28.4
Dec2000
-27:38:06.7
Alternate Names
HD 15337, HD 15337 A

Zhang et al. (2024) report a candidate common proper motion companion 1.44 arcseconds away from TOI-402 (64.5 AUs at 44.8 pc). Depending on estimated luminosity the companion could be a faint M dwarf star or a brown dwarf (see ExoFOP TESS table "Stellar Companions"), the former option being favoured by Ziegler et al. (2020).

No link