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Exoplanet Name : |
EPIC 211331236 b |
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Alternate Name : |
K2-117 b |
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Radius (Rjup / Re): |
0.1749 |
(Rjup) |
1.9605 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0155 |
(Mjup) |
4.9341 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0190 |
(AU) |
0.0190 |
(AU Est.) |
|
Eccentricity : |
0.0600 |
|
Orbital Period(Yrs) |
0.0035 |
|
Orbital Period(Observed/Estimated) |
1.29 |
(Days Obs.) |
1.25 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.2838 |
|
Star Radiation at Atmospheric Boundary: |
179166.7 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
918.2 |
(K) |
|
Blackbody T 0.3(K) |
862.3 |
(K) |
|
Blackbody T 0.7(K) |
697.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1092.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1025.5 |
(K) |
|
Size Class: |
sub-Neptune-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
|
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
EPIC 211331236 |
|
Alternate Name : |
"K2-117, 2MASS J08552535+1028087" |
|
Star Distance(LY) : |
326.2 |
|
Stellar Radius(Rsun) : |
0.5 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.6 |
(Msun Measured) |
0.5 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3842 |
(K) |
|
Spectral type : |
M1.V |
|
UV portion[%]: |
0.5 |
|
Visible portion[%]: |
20.4 |
|
IR portion[%]: |
79.1 |
|
Metalicity : |
-0.2 |
|
Absolute Magnitude: |
17.0 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
133.8557 |
|
Declination (DEC) |
10.4691 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
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Discovered by |
|
|
Discovery Paper - Authors |
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|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=EPIC+211331236+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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EPIC 211331236 b
EPIC 211331236 b
EPIC 211331236 b is an exoplanet orbiting the star EPIC 211331236, located about 326.2 light-years (100.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
The host star EPIC 211331236 has apparent magnitude of 22.0, with absolute magnitude of 17.0. It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3842 with its spectral types of M1.V
In this planetary system, the extrasolar planet EPIC 211331236 b orbits around the star EPIC 211331236 every 1.3 days with its orbital distance of 0.02 AU ( 2842359.5 km)
(Projected orbit of EPIC 211331236 b around its host star EPIC 211331236)
The Star EPIC 211331236 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.157 AU ( 23536286.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.217 AU ( 32533298.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.331 AU ( 49573547.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.488 AU ( 72949646.1 km)
Radiation at Planetary Boundary of EPIC 211331236 b : 179166.68 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 211331236)
Kopparapu Recent Venus for Star EPIC 211331236 distance : 0.177 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 211331236 distance : 0.224 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 211331236 distance : 0.216 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 211331236 distance : 0.238 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 211331236 distance : 0.428 AU
Kopparapu Outer Boundary for Early Mars for Star EPIC 211331236 distance : 0.452 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 211331236)
Original Kopparapu Recent Venus for Star EPIC 211331236 distance : 0.175 AU
Original Kopparapu Runaway Greenhouse for Star EPIC 211331236 distance : 0.232 AU
Original Kopparapu Moist Greenhouse for Star EPIC 211331236 distance : 0.231 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 211331236 distance : 0.435 AU
Original Kopparapu Outer Boundary for Early Mars for Star EPIC 211331236 distance : 0.452 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 211331236)
(Position in Stellar Map of star EPIC 211331236 and its Exoplanet EPIC 211331236 b)
(Zoomed position in Stellar Map of star EPIC 211331236 and its Exoplanet EPIC 211331236 b (zoom level 3))
