Planet GJ 436 c

Name GJ 436 c
Discovered in 2012
Mass 0.0009 (± 0.0002) MJ
Semi-major axis 0.0185 AU
Orbital period 1.365862 (± 8e-06) day
Eccentricity
ω
Tperi
Radius 0.059 (± 0.0036) RJ
Inclination 86.7 deg;
Update Sept. 3, 2012
Detection Method Controversial
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit 245772.8086 (± 0.0016) JD
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

Remarks

Alias UCF-1.01

31 Aug 2012: The mass given by Stevenson et al. 2012 is derived from the measured radius, assuming an Earth-like density of 5.515 g/cm3.

Star

Name GJ 436
Distance 10.2 pc
Spectral type M2.5
Apparent magnitude V 10.68
Mass 0.452 ( -0.012 +0.012 ) MSun
Age 6.0 ( -5.0 +5.0 ) Gyr
Effective temperature 3684.0 ( -55.0 +55.0 ) K
Radius 0.464 ( -0.011 +0.011 ) RSun
Metallicity [Fe/H] -0.32 (± 0.12)
Detected Disc
Magnetic Field
RA2000 11:42:11.0
Dec2000 +26:42:23
Alternate Names
Planetary system 3 planet

More data


Related publications

On the GJ 436 planetary system
2015 MACIEJEWSKI G., NIEDZIELSKI A., NOWAK G., PALLE E., TINGLEY B. et al.
Acta Astronomica, accepted
arxiv  

Friends of Hot Jupiters I: A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets
2014 KNUTSON H., FULTON B., MONTET B., KAO M., NGO H. & 8 additional authors
ApJ, 785, 126
paper   arxiv   ADS  

Below One Earth: The Detection, Formation, and Properties of Subterrestrial Worlds
2013 SINUKOFF E., FULTON B., SCUDERI L. & GAIDOS E.
Spa. Sci. Rev., in press
paper  arxiv 

Two nearby sub-Earth-sized exoplanet candidates in the GJ 436 system
2012 STEVENSON K., HARRINGTON J., LUST N., LEWIS N., MONTAGNIER G. & 6 additional authors
ApJ, 755, 9
paper   arxiv

The transiting exoplanet host star GJ 436: a test of stellar evolution models in the lower main sequence, and revised planetary parameters
2007 TORRES G.
ApJ. Letters, 671, L65
paper

Metallicities of M Dwarf Planet Hosts from Spectral Synthesis
2006 BEAN J., BENEDICT F. & ENDL M.
ApJ. Letters, 653, L65
paper