Planet WISE 1217+16 A b

Name WISE 1217+16 A b
Planet Status Confirmed
Discovered in 2012
Mass 22.0 ( -2.0 +2.0 ) MJ
Mass*sin(i)
Semi-Major Axis 7.6 AU
Orbital Period 47400.0 ( -11000.0 +80000.0 ) day
Eccentricity
ω
Tperi
Radius 0.96 ( -0.03 +0.03 ) RJ
Inclination
Update 2017-06-08
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 450.0 K
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH) 4.8
Alternate Names WISEPC J121756.91+162640.2B, WISE J1217+1626B

Star

WISE 1217+16 A
Name WISE 1217+16 A
Distance 10.0 (± 2.0) pc
Spectral type T8.5
Apparent magnitude V 19.0
Mass 0.03 (± 0.005) MSun
Age 6.0 (± 2.0) Gyr
Effective temperature 575.0 (± 25.0) K
Radius 0.091 (± 0.004) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 12:17:57.0
Dec2000 +16:26:40
Alternate Names
Planetary system 1 planet

Remarks

Binary brown dwarf

More data

Atmospheric parameters

Temperatures

Data Source Type Result Value Result Figure Notes Reference

Molecules

Molecule Data Source Type Result Value Result Figure Notes Reference
CH4 Measurements Detected None 2014 - LEGGETT S.
H2 Measurements Detected None 2014 - LEGGETT S.
H2O Measurements Detected None 2014 - LEGGETT S.

Observability Predictor

Remarks

Binary brown dwarf.

(Leggett et al. 2014): Spectral type Y0-0.5, with related molecules (in addition to those indicated above, NH3 absorption detected).

(Leggett et al. 2014): very thin or no chloride/sulfide cloud layers, with a sedimentation parameter fsed > 5.


Related publications

Imaging Extrasolar Giant Planets
2016 BOWLER B.
PASP, 128, 102001
paper  arxiv  ADS  

Resolved Spectroscopy of the T8.5 and Y0-0.5 Binary WISEPC J121756.91+162640.2AB
2014 LEGGETT S., LIU M., DUPUY T., MORLEY C., MARLEY M. & SAUMON D.
ApJ, 780, 62
paper   arxiv   ADS  

Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects
2013 DUPUY T. & KRAUS A.
Science, 341, 1492
paper   arxiv   ADS  

Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-band Fluxes of the Coolest Brown Dwarfs
2012 LIU M., DUPUY T., BOWLER B., LEGGETT S. & REST W.
ApJ, 758, 57
paper   arxiv   ADS