Planet 2MASS J10475385+2124234

Name 2MASS J10475385+2124234
Planet Status Confirmed
Discovered in 1999
Mass 42.0 (± 26.0) MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Update 2020-04-11
Detection Method Imaging
Mass Detection Method Theoretical
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 2MASS J1047+21

System

Distance 10.56 pc
RA2000 10:47:53.9
Dec2000 +21:24:23

Observability Predictor

Remarks

Allers et al., 2020 : 2MASS J10475385+2124234 is a T6.5 BD of 0.5 to 10 billion years with an estimated temperature of 880+/-76 K, a rotation period of 1.77 ± 0.04 hours and a magnetic field strength of 5.6 kG. The difference between radio period and infrared period implies a wind of +650 ± 310 m/s proceeding eastward.

Related publications

Radiative Rayleigh-Taylor Instability and the structure of clouds in planetary atmospheres
2021 TREMBLIN P., BLOCH H., GONZALEZ M., AUDIT E., FROMANG S. et al.
Astron. & Astrophys., 653, A30
paper   arxiv  

A Measurement of the Wind Speed on a Brown Dwarf
2020 ALLERS K., VOS J., BILLER B. & WILLIAMS P.
Science, 368, 169
paper

Discovery of four field methane (T-type) dwarfs with the Two Micron All-Sky Survey.
1999 BURGASSER, A., KIRKPATRICK, J., BROWN, M. et al.
AJ, 522, L65
ADS   paper