Planet DO Tau b

Detailed information about planet DO Tau b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
DO Tau b
Planet Status
Candidate
Discovered in
2026
Publication
Status
—
Update
2026-03-02
Mass
2.8 ( ± 0.6 ) MJ
Mass*sin(i)
2.0 ( ± 0.4 ) MJ
Semi-Major Axis
0.12 ( ± 0.01 ) AU
Orbital Period
21.14 ( ± 0.02 ) day
Eccentricity
—
Angular distance
—
ω
—
Tperi
—
Radius
—
Inclination
45.0 ( ± 8.0 ) deg
Detection Method
Radial Velocity
Mass Meas. Method
Radial Velocity
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
220.0 ( ± 40.0 ) 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

Donati et al. (2026): true mass for the planet is estimated assuming coplanarity with stellar rotation axis.

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Star

Name
DO Tau
Distance
138.52 ( ± 0.68 ) pc
Spectral type
M1Ve
Apparent magnitude V
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
0.54 ( ± 0.07 ) MSun
Age
0.0017 ( ± 0.0005 ) Gyr
Effective temperature
3450.0 ( ± 50.0 ) K
Radius
1.9 ( ± 0.2 ) RSun
Metallicity [Fe/H]
—
Detected Disc
IR Excess
Magnetic Field
—
RA2000
04:38:28.6
Dec2000
+26:10:49.5
Alternate Names
—

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