Planet BD20 2457 c

Name BD20 2457 c
Discovered in 2009
Mass 12.47 MJ
Semi-major axis 2.01 AU
Orbital period 621.99 (± 10.2) day
Eccentricity 0.18 (± 0.06)
ω 126.02 (± 16.54) deg
Tperi 2453867.45 (± 27.99) JD
Radius
Inclination
Update Aug. 27, 2014
Detection Method Radial Velocity
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Observability Predictor

Star

Name BD20 2457
Distance 200.0 (± 100.0) pc
Spectral type K2II
Apparent magnitude V 9.75
Mass 2.8 (± 1.5) MSun
Age
Effective temperature 4127.0 (± 17.0) K
Radius
Metallicity [Fe/H] -1.0 (± 0.07)
Detected Disc
Magnetic Field
RA2000 10:16:45.0
Dec2000 +19:53:29
Alternate Names
Planetary system 2 planets

More data


Related publications

A Dynamical Investigation of the Proposed BD +20 2457 System
2014 HORNER J., WITTENMYER R., HINSE T. & MARSHALL J.
MNRAS, accepted
arxiv 

Substellar-mass companions to the K-dwarf BD +14 4559 and the K-giants HD 240210 and BD +20 2457
2009 NIEDZIELSKI A., NOWAK G., ADAMOW M. & WOLSZCZAN A.
ApJ.
paper