Planet GJ 436 b

Detailed information about planet GJ 436 b and its parameters.

Planet

Name
GJ 436 b
Planet Status
Confirmed
Discovered in
2004
Mass
0.07 MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Update
2024-01-27
Detection Method
Radial Velocity
Mass Detection Method
Radial Velocity
Radius Detection Method
Primary Transit
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
18.07 m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
CH4
Measurements Detected 2013 - LINE M.
Measurements Detected 2011 - MADHUSUDHAN N. & SEAGER S.
Measurements Detected 2010 - STEVENSON K.
CO
Measurements Detected 2016 - CRIDLAND A.
Measurements Detected 2013 - LINE M.
Measurements Detected 2011 - MADHUSUDHAN N. & SEAGER S.
Measurements Detected 2010 - STEVENSON K.
CO2
Measurements Detected 2013 - LINE M.
Measurements Detected 2011 - MADHUSUDHAN N. & SEAGER S.
Measurements Detected 2010 - STEVENSON K.
H
Modeling Detected 2019 - KISLYAKOVA K.
Modeling Detected 2019 - KISLYAKOVA K.
Measurements Detected 2015 - BOURRIER V.
Measurements Detected 2014 - KULOW J.
H2O
Measurements Detected 2013 - LINE M.
Measurements Detected 2011 - MADHUSUDHAN N. & SEAGER S.
Measurements Detected 2010 - STEVENSON K.
Si
Measurements Detected 2019 - dos SANTOS L.

June 2015: Detection of a large exospheric cloud composed mainly of hydrogen atoms (Ehrenreich et al., 2015)
11 Oct 2010: No conclusive evidence for molecular features in NICMOS data (Gibson et al. 2010)
21 May 2008: The planet GJ 436 c (Ribas et al. 2008) has been retracted at the Transiting Planet conference in Boston
15 Apr 2008: Transit Light Curve by AXA