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Exoplanet Name : |
K2-232 Ab |
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Alternate Name : |
"EPIC 247098361 b, Cl Melotte 25 341 b, 2MASS J04550395+1839164 b, BD+18 753 b, GSC 01284-00745 b, HD 286123 b, TYC 1284 |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
1.0000 |
(Rjup) |
11.2090 |
(Rearth) |
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Mass (Mjup / Me): |
0.3980 |
(Mjup) |
126.5393 |
(Mearth) |
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Semi Major Axis / Orbital Distance Calculated |
0.1036 |
(AU) |
0.1036 |
(AU Est.) |
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Eccentricity : |
0.2580 |
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Orbital Period(Yrs) |
0.0306 |
|
Orbital Period(Observed/Estimated) |
11.17 |
(Days Obs.) |
11.16 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.0071 |
|
Star Radiation at Atmospheric Boundary: |
220681.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
967.4 |
(K) |
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Blackbody T 0.3(K) |
908.4 |
(K) |
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Blackbody T 0.7(K) |
735.0 |
(K) |
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Tidally Locked Blackbody T 0.1(K) |
1150.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1080.3 |
(K) |
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Size Class: |
Jupiter-size |
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Mass Class: |
|
|
Detection Type : |
Primary Transit |
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Mass Detection : |
Radial Velocity |
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Radius Detection : |
Primary Transit |
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Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
K2-232 A |
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Alternate Name : |
"2MASS J04550395+1839164, BD+18 753, EPIC 247098361, GSC 01284-00745, HD 286123, TYC 1284-745-1, WISE J045504.00+183915.ã |
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Star Distance(LY) : |
427.9 |
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Stellar Radius(Rsun) : |
1.2 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
1.4 |
(GY) |
|
Temperature : |
6154 |
(K) |
|
Spectral type : |
F9V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
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Metalicity : |
0.1 |
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Absolute Magnitude: |
4.2 |
|
Apparent Magnitude: |
9.8 |
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Right Ascension(RA) |
73.7665 |
|
Declination (DEC) |
18.6545 |
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Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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|
Discovery Paper - Authors |
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|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
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|
SIMBAD LINK |
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Open Exoplanet Database Link |
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K2-232 Ab
K2-232 Ab
K2-232 Ab is an exoplanet orbiting the star K2-232 A, located about 427.9 light-years (131.2 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star K2-232 A has apparent magnitude of 9.8, with absolute magnitude of 4.2. It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6154 with its spectral types of F9V
In this planetary system, the extrasolar planet K2-232 Ab orbits around the star K2-232 A every 11.2 days with its orbital distance of 0.10 AU ( 15492355.5 km)
(Projected orbit of K2-232 Ab around its host star K2-232 A)
The Star K2-232 A 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.952 AU ( 142374130.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.316 AU ( 196798255.5 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.005 AU ( 299876990.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.950 AU ( 441282127.6 km)
Radiation at Planetary Boundary of K2-232 Ab : 220681.88 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-232 A)
Kopparapu Recent Venus for Star K2-232 A distance : 0.964 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-232 A distance : 1.221 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-232 A distance : 1.179 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-232 A distance : 1.292 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-232 A distance : 2.137 AU
Kopparapu Outer Boundary for Early Mars for Star K2-232 A distance : 2.254 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-232 A)
Original Kopparapu Recent Venus for Star K2-232 A distance : 0.973 AU
Original Kopparapu Runaway Greenhouse for Star K2-232 A distance : 1.253 AU
Original Kopparapu Moist Greenhouse for Star K2-232 A distance : 1.287 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-232 A distance : 2.175 AU
Original Kopparapu Outer Boundary for Early Mars for Star K2-232 A distance : 2.262 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-232 A)
(Position in Stellar Map of star K2-232 A and its Exoplanet K2-232 Ab)
(Zoomed position in Stellar Map of star K2-232 A and its Exoplanet K2-232 Ab (zoom level 3))
(Synthetic Spectrum of star K2-232 A*)
*Yamashiki YA et al. 2019 ApJ 881 114
MUSCLES Paper I - France et al. 2016 ApJ 820 89
MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102
