Planet LHS 1903 b

Detailed information about planet LHS 1903 b and its parameters.

Planet parameters Publications Observability Predictor Exo3D

Planet

Name
LHS 1903 b
Planet Status
Confirmed
Discovered in
2026
Publication
Status
—
Update
2026-02-13
Mass
0.01032 ( ± 0.00132 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.02656 ( ± 0.0006 ) AU
Orbital Period
2.1555098 ( ± 3e-05 ) day
Eccentricity
0.015 ( +0.014 -0.01 )
Angular distance
—
ω
216.0 ( ± 0.87 ) deg
Tperi
—
Radius
0.12329 ( ± 0.0041 ) RJ
Inclination
—
Detection Method
Primary Transit
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary Transit
Primary transit
2458844.5771 ( ± 0.001 ) JD
Secondary transit
—
λ
—
Impact Parameter b
0.174 ( ± 0.09 )
Time Vr=0
—
Velocity Semiamplitude K
2.46 ( ± 0.3 ) m/s
Calculated temperature
800.0 ( ± 20.0 ) K
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
LHS 1903
Distance
35.6917 ( ± 0.0833 ) pc
Spectral type
M0.5V
Apparent magnitude V
12.2
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.538 ( ± 0.04 ) MSun
Age
7.08 ( +3.0 -2.0 ) Gyr
Effective temperature
3664.0 ( ± 70.0 ) K
Radius
0.539 ( ± 0.014 ) RSun
Metallicity [Fe/H]
-0.11 ( ± 0.09 )
Detected Disc
—
Magnetic Field
—
RA2000
07:11:27.9
Dec2000
+48:19:49.4
Alternate Names
G 107-55, TOI-1730

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