Planet WISE 1217+16 A b

Detailed information about planet WISE 1217+16 A b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
WISE 1217+16 A b
Planet Status
Confirmed
Discovered in
2012
Publication
Status
Published in a refereed paper
Update
2017-06-08
Mass
22.0 ( +2.0 -2.0 ) MJ
Mass*sin(i)
—
Semi-Major Axis
7.6 AU
Orbital Period
47400.0 ( +80000.0 -11000.0 ) day
Eccentricity
—
Angular distance
—
ω
—
Tperi
—
Radius
0.96 ( +0.03 -0.03 ) RJ
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
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
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
CH4
Measurements Detected 2014 - LEGGETT S.
H2
Measurements Detected 2014 - LEGGETT S.
H2O
Measurements Detected 2014 - LEGGETT S.

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.

No link

Star

Name
WISE 1217+16 A
Distance
10.0 ( ± 2.0 ) pc
Spectral type
T8.5
Apparent magnitude V
19.0
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
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
+16:26:40.0
Alternate Names

Binary brown dwarf

No link