Exoplanet Name : |
GJ 436 b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.3252 |
(Rjup) |
3.6451 |
(Rearth) |
Mass (Mjup / Me): |
0.0584 |
(Mjup) |
18.5549 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
0.0289 |
(AU) |
0.0289 |
(AU Est.) |
Eccentricity : |
0.1912 |
Orbital Period(Yrs) |
0.0072 |
Orbital Period(Observed/Estimated) |
2.64 |
(Days Obs.) |
2.66 |
(Days Est.) |
Surface Gravity (G Earth) |
1.3965 |
Star Radiation at Atmospheric Boundary: |
58348.0 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
693.7 |
(K) |
Blackbody T 0.3(K) |
651.4 |
(K) |
Blackbody T 0.7(K) |
527.1 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
824.9 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
774.7 |
(K) |
Size Class: |
Neptune-size |
Mass Class: |
|
Detection Type : |
Radial Velocity |
Mass Detection : |
Radial Velocity |
Radius Detection : |
Primary Transit |
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
GJ 436 |
Alternate Name : |
|
Star Distance(LY) : |
33.3 |
Stellar Radius(Rsun) : |
0.5 |
(Rsun Measured) |
Stellar Mass(Msun) : |
0.5 |
(Msun Measured) |
0.5 |
(Msun Estimated) |
Star Age : |
6.0 |
(GY) |
Temperature : |
3684 |
(K) |
Spectral type : |
M2.5 |
UV portion[%]: |
0.2 |
Visible portion[%]: |
10.1 |
IR portion[%]: |
89.7 |
Metalicity : |
-0.3 |
Absolute Magnitude: |
10.6 |
Apparent Magnitude: |
10.7 |
Right Ascension(RA) |
175.5462 |
Declination (DEC) |
26.7064 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
Discovered by |
|
Discovery Paper - Authors |
"Jeffrey L. Coughlin, Guy S. Stringfellow, Andrew C. Becker, Mercedes Lopez-Morales, Fabio Mezzalira, Tom Krajci" |
Discovery Paper - Title |
New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b |
Discovery Paper - Journal |
DOI:10.1086/595822 |
Discovery Paper - URL |
https://arxiv.org/abs/0809.1664 |
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GJ+436&submit=SIMBAD+search |
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/Gliese%20436%20b/ |
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