Planet 2MASS J0850+1057

Detailed information about planet 2MASS J0850+1057 and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
2MASS J0850+1057
Planet Status
Confirmed
Discovered in
1999
Update
2024-06-30
Mass
40.0 ( ± 20.0 ) MJ
Mass*sin(i)
—
Semi-Major Axis
7700.0 AU
Orbital Period
—
Eccentricity
—
ω
—
Tperi
—
Radius
—
Inclination
—
Detection Method
Imaging
Mass Meas. Method
—
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
—
Calculated temperature
—
Measured temperature
1590.0 K
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
2MASS J08503593+1057156, NLTT 20346 (AB)b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Spectral type L7+L6.5. Inferred system age: 0.25-1.5 Gyr. Itself binary.

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Star

Name
NLTT 20346
Distance
31.7 pc
Spectral type
M5V
Apparent magnitude V
15.92
Mass
0.116 ( ± 0.009 ) MSun
Age
—
Effective temperature
2949.0 ( ± 176.0 ) K
Radius
0.14 ( ± 0.011 ) RSun
Metallicity [Fe/H]
-0.07 ( ± 0.18 )
Detected Disc
—
Magnetic Field
—
RA2000
08:50:19.1
Dec2000
+10:56:43.5
Alternate Names
LP 486-16, FAH 1

Faherty et al. (2011): NLTT 20346 forms a widely separated binary system with an M6 dwarf companion star (50 < a < 80 AUs) and a multiple system with binary brown dwarf 2MASS J08503593+1057156.

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