|
Exoplanet Name : |
WASP-138 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.2200 |
(Mjup) |
387.8844 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0494 |
(AU) |
0.0494 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0100 |
|
Orbital Period(Observed/Estimated) |
3.63 |
(Days Obs.) |
3.63 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.7459 |
|
Star Radiation at Atmospheric Boundary: |
1438311.4 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1545.6 |
(K) |
|
Blackbody T 0.3(K) |
1451.5 |
(K) |
|
Blackbody T 0.7(K) |
1174.4 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1838.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1726.1 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
WASP-138 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
1004.6 |
|
Stellar Radius(Rsun) : |
1.4 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
6272 |
(K) |
|
Spectral type : |
F9 |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
-0.1 |
|
Absolute Magnitude: |
4.4 |
|
Apparent Magnitude: |
11.8 |
|
Right Ascension(RA) |
41.6390 |
|
Declination (DEC) |
-0.4639 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-138+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
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WASP-138 b
WASP-138 b
WASP-138 b is an exoplanet orbiting the star WASP-138, located about 1004.6 light-years (308.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
The host star WASP-138 has apparent magnitude of 11.8, with absolute magnitude of 4.4. It is 1.2 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6272 with its spectral types of F9
In this planetary system, the extrasolar planet WASP-138 b orbits around the star WASP-138 every 3.6 days with its orbital distance of 0.05 AU ( 7390134.8 km)
(Projected orbit of WASP-138 b around its host star WASP-138)
The Star WASP-138 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.159 AU ( 173384040.8 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.602 AU ( 239662055.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.441 AU ( 365191934.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 3.592 AU ( 537395930.1 km)
Radiation at Planetary Boundary of WASP-138 b : 1438311.42 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-138)
Kopparapu Recent Venus for Star WASP-138 distance : 1.166 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-138 distance : 1.476 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-138 distance : 1.426 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-138 distance : 1.562 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-138 distance : 2.578 AU
Kopparapu Outer Boundary for Early Mars for Star WASP-138 distance : 2.719 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-138)
Original Kopparapu Recent Venus for Star WASP-138 distance : 1.180 AU
Original Kopparapu Runaway Greenhouse for Star WASP-138 distance : 1.515 AU
Original Kopparapu Moist Greenhouse for Star WASP-138 distance : 1.561 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-138 distance : 2.625 AU
Original Kopparapu Outer Boundary for Early Mars for Star WASP-138 distance : 2.729 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-138)
(Position in Stellar Map of star WASP-138 and its Exoplanet WASP-138 b)
(Zoomed position in Stellar Map of star WASP-138 and its Exoplanet WASP-138 b (zoom level 3))
(Synthetic Spectrum of star WASP-138*)
*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
