Planet 2M 0746+20 b

Name 2M 0746+20 b
Planet Status Confirmed
Discovered in 2010
Mass 12.21 (± 0.4) MJ
Mass*sin(i)
Semi-Major Axis 2.897 ( -0.005 +0.005 ) AU
Orbital Period 4640.0 (± 25.0) day
Eccentricity 0.487 (± 0.003)
ω 354.4 (± 0.9) deg
Tperi
Radius 0.97 ( -0.06 +0.06 ) RJ
Inclination 138.2 (± 0.5) deg
Update 2018-10-04
Detection Method Imaging
Mass Detection Method
Radius Detection 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

Star

2M 0746+20
Name 2M 0746+20
Distance 12.21 (± 0.05) pc
Spectral type L0
Apparent magnitude V
Mass 0.08 (± 0.002) MSun
Age
Effective temperature 2205.0 (± 50.0) K
Radius 0.089 (± 0.003) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 07:46:43.0
Dec2000 +20:00:32
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

Harris et al. (2014) : the spectral type of 2M0746+20 b is L1.5

Related publications

Astrometric Orbits and Masses for Three Low-Mass Binaries
2014 Harris, H., Dahn, C., & Dupuy, T.
Cool Stars 18
article 

High-precision Dynamical Masses of Very Low Mass Binaries
2011 KONOPACKY Q., GHEZ A., BARMAN T., RICE E., BAILEY J. & 4 additional authors
ApJ., 711, 1087
paper

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5