Planet VHS 1256-1257 b

Name VHS 1256-1257 b
Planet Status Confirmed
Discovered in 2015
Mass 19.0 (± 5.0) MJ +
Mass*sin(i)
Semi-Major Axis 102.0 (± 9.0) AU
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Update 2020-04-14
Detection Method Imaging
Mass Detection Method Astrometry
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature 1240.0 K +
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

VHS 1256-1257
Name VHS 1256-1257
Distance 12.7 (± 1.0) pc
Spectral type M7.5
Apparent magnitude V 17.8
Mass 0.073 ( -0.02 +0.015 ) MSun
Age 0.2 ( -0.1 +0.05 ) Gyr
Effective temperature 2620.0 (± 140.0) K
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 12:56:02.0
Dec2000 -12:57:24
Alternate Names
Planetary system 1 planet

Remarks

Rich et al., 2016 : the central star is a binary, whose components are nearly equal in brightness and separated by 0.106" +/- 0.001".

More data

Observability Predictor

Remarks

Rich et al., 2016 : the central star is a binary, whose components are nearly equal in brightness and separated by 0.106" +/- 0.001".

Related publications

The Parallax of VHS J1256-1257 from CFHT and Pan-STARRS 1
2020 DUPUY T., LIU M., MAGNIER M., BEST W., BARAFFE I. et al.
Res. Notes AAS, accepted
arxiv

Methane in Analogs of Young Directly Imaged Exoplanets
2018 MILES B., SKEMER A., BARMAN T., ALLERS K. & STONE J.
ApJ, 869, 18
paper  arxiv  

Thermal Infrared Imaging and Atmospheric Modeling of VHS J125601.92-125723.9 b: Evidence for Moderately Thick Clouds and Equilibrium Carbon Chemistry in a Hierarchical Triple System
2016 RICH, E., CURRIE, T., WISNIEWSKI, J., HASHIMOTO, J., BRANDT, T. & 3additional authors
ApJ, 830, 114
arxiv  paper   ADS  

Adaptive Optics imaging of VHS 1256-1257: A Low Mass Companion to a Brown Dwarf Binary System
2016 STONE J., SKEMER A., KRATTER K., DUPUY T., CLOE L. et al.
ApJ, accepted
arxiv  

Discovery of a young planetary mass companion to the nearby M dwarf VHS J125601.92-125723.9
2015 GAUZA B., BEJAR V., PEREZ-GARRIDO A., ZAPATERO-OSORIO M.-R., LODIEU N. et al.
ApJ, 804
paper  arxiv  ADS