Planet 2MASS J1839+4424 b

Detailed information about planet 2MASS J1839+4424 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
2MASS J1839+4424 b
Planet Status
Confirmed
Discovered in
2008
Update
2024-08-21
Mass
38.7 ( +1.8 -1.6 ) MJ
Mass*sin(i)
—
Semi-Major Axis
832.0 AU
Orbital Period
—
Eccentricity
—
ω
—
Tperi
—
Radius
—
Inclination
—
Detection Method
Imaging, Astrometry
Mass Meas. Method
Astrometry
Radius Meas. Method
—
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
2MASS J18392735+4424484, KPP 3332 b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Spectral type L2. Age: 185 ± 20 Myrs. Likely companion to very low-mass star 2MASS J18392917+4424386 (spT M9) 22 arcseconds away (832 AUs at 37.67 pc).

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Star

Name
2MASS J1839+4424
Distance
37.67 pc
Spectral type
M9V
Apparent magnitude V
—
Mass
0.071 ( +0.0031 -0.0047 ) MSun
Age
0.185 ( ± 0.02 ) Gyr
Effective temperature
2810.0 ( ± 158.0 ) K
Radius
0.123 ( ± 0.00382 ) RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
18:39:29.2
Dec2000
+44:24:38.6
Alternate Names
2MASS J18392917+4424386, KP 3332 A

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