Planet HD 203030 b

Name HD 203030 b
Planet Status Confirmed
Discovered in 2017
Mass 11.0 ( -4.0 +4.0 ) MJ
Mass*sin(i)
Semi-Major Axis 487.0 AU
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Update 2018-12-21
Detection Method Imaging
Mass Detection Method Spectrum
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature 1040.0 K
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names HIP 105232 b, V457 Vul b

Star

HD 203030
Name HD 203030
Distance 41.0 (± 1.2) pc
Spectral type G8V
Apparent magnitude V 8.43
Mass 0.97 MSun
Age 0.25 ( -0.07 +0.07 ) Gyr +
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 21:18:58.0
Dec2000 +26:13:50
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

It is an L7.5+/-0.5 brown dwarf.

Related publications

The Prototypical Young L/T-Transition Dwarf HD 203030B Likely Has Planetary Mass
2017 MILES-PAEZ P., METCHEV S., LUHMAN K., MARENGO M. & HULSEBUS A.
Astron. J., 154, 262
paper  arxiv  

The Brown Dwarf Kinematics Project. II. Details on Nine Wide Common Proper Motion Very Low Mass Companions to Nearby Stars
2010 FAHERTY J., BURGASSER A., WEST A., BOCHANSKI J., CRUZ K. & 2 additional authors
ApJ., 139, 176
paper

HD 203030B: An Unusually Cool Young Substellar Companion near the L/T Transition
2006 METCHEV S. & HILLENBRAND L.
ApJ., 651, 1166
paper