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 |
— |
|
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Measured temperature |
— |
|
|
Hottest point longitude |
— |
|
|
Geometric albedo |
— |
|
|
Surface gravity log(g/gH) |
— |
|
|
Alternate Names |
— |
|
|
Star
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
|
|
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