Planet DoAr 21 (AB)b

Detailed information about planet DoAr 21 (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
DoAr 21 (AB)b
Planet Status
Confirmed
Discovered in
2019
Update
2024-06-16
Mass
35.6 ( ± 27.2 ) MJ
Mass*sin(i)
—
Semi-Major Axis
1.55 ( ± 0.06 ) AU
Orbital Period
450.88 ( ± 3.8 ) day
Eccentricity
0.089 ( ± 0.01 )
ω
54.96 ( ± 1.4 ) deg
Tperi
—
Radius
—
Inclination
104.5 ( ± 0.96 ) deg
Detection Method
Astrometry
Mass Meas. Method
Astrometry
Radius Meas. Method
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Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
—
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

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Star

Name
DoAr 21 (AB)
Distance
134.6 ( ± 1.0 ) pc
Spectral type
K0 + M3
Apparent magnitude V
14.0
Mass
2.04 ( ± 0.7 ) MSun
Age
0.0006 ( ± 0.0002 ) Gyr
Effective temperature
5080.0 K
Radius
4.06 RSun
Metallicity [Fe/H]
—
Detected Disc
IR Excess
Magnetic Field
—
RA2000
16:26:03.0
Dec2000
-24:23:36.0
Alternate Names
*V2246 Oph, Haro 1-6, ISO-Oph 10, EPIC 203924502

DoAr 21 forms an eccentric binary system with an M dwarf companion star (a ∼ 0.536 AUs, P ∼ 92.92 ± 0.02 d, e = 0.391). An extended asymmetric ring structure with an inclination of about 81° is detected ∼73-219 AU away from the central star.

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