Exoplanet Name : |
WISEA J2318+0521 b |
Alternate Name : |
"WISEA J231825.63+052141.6 b, CWISE J231824.58+052142.3" |
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
60.0000 |
(Mjup) |
19076.2800 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
1100.0000 |
(AU) |
1100.0000 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
69394.4040 |
Orbital Period(Observed/Estimated) |
25347000.00 |
(Days Obs.) |
28671629.55 |
(Days Est.) |
Surface Gravity (G Earth) |
184.2260 |
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
2.3 |
(K) |
Blackbody T 0.3(K) |
2.1 |
(K) |
Blackbody T 0.7(K) |
1.7 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
2.7 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
2.6 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
Imaging |
Mass Detection : |
|
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
WISEA J2318+0521 |
Alternate Name : |
"WISEA J231825.63+052141.6, 2MASS J23182567+0521427" |
Star Distance(LY) : |
227.6 |
Stellar Radius(Rsun) : |
0.2 |
(Rsun Measured) |
Stellar Mass(Msun) : |
0.2 |
(Msun Measured) |
0.3 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
3260 |
(K) |
Spectral type : |
M5V |
UV portion[%]: |
0.3 |
Visible portion[%]: |
7.6 |
IR portion[%]: |
92.0 |
Metalicity : |
0.0 |
Absolute Magnitude: |
13.4 |
Apparent Magnitude: |
17.6 |
Right Ascension(RA) |
349.6070 |
Declination (DEC) |
5.3619 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
Discovered by |
|
Discovery Paper - Authors |
|
Discovery Paper - Title |
|
Discovery Paper - Journal |
|
Discovery Paper - URL |
|
SIMBAD LINK |
|
Open Exoplanet Database Link |
|
![](WISEA_J2318+0521_b_CSun.png) |
![](WISEA_J2318+0521_b_CJup.png) |
![](WISEA_J2318+0521_b_CNep.png) |
![](WISEA_J2318+0521_b_CEar.png) |
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WISEA J2318+0521 b
WISEA J2318+0521 b
WISEA J2318+0521 b is an exoplanet orbiting the star WISEA J2318+0521, located about 227.6 light-years (69.8 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star WISEA J2318+0521 has apparent magnitude of 17.6, with absolute magnitude of 13.4. It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3260 with its spectral types of M5V
In this planetary system, the extrasolar planet WISEA J2318+0521 b orbits around the star WISEA J2318+0521 every 25347000.0 days with its orbital distance of 1100.00 AU ( 164557657770.0 km)
(Projected orbit of WISEA J2318+0521 b around its host star WISEA J2318+0521)
![](WISEA_J2318+0521_b_Orb.png)
The Star WISEA J2318+0521 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.056 AU ( 8438386.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.078 AU ( 11664054.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.119 AU ( 17773438.4 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.175 AU ( 26154393.3 km)
Radiation at Planetary Boundary of WISEA J2318+0521 b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WISEA J2318+0521)
![](WISEA_J2318+0521_b_OrbH.png)
Kopparapu Recent Venus for Star WISEA J2318+0521 distance : 0.064 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star WISEA J2318+0521 distance : 0.081 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WISEA J2318+0521 distance : 0.078 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star WISEA J2318+0521 distance : 0.086 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star WISEA J2318+0521 distance : 0.159 AU
Kopparapu Outer Boundary for Early Mars for Star WISEA J2318+0521 distance : 0.168 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star WISEA J2318+0521)
![](WISEA_J2318+0521_b_OrbK.png)
Original Kopparapu Recent Venus for Star WISEA J2318+0521 distance : 0.064 AU
Original Kopparapu Runaway Greenhouse for Star WISEA J2318+0521 distance : 0.084 AU
Original Kopparapu Moist Greenhouse for Star WISEA J2318+0521 distance : 0.084 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WISEA J2318+0521 distance : 0.162 AU
Original Kopparapu Outer Boundary for Early Mars for Star WISEA J2318+0521 distance : 0.168 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star WISEA J2318+0521)
![](WISEA_J2318+0521_b_OrbKO.png)
(Position in Stellar Map of star WISEA J2318+0521 and its Exoplanet WISEA J2318+0521 b)
![](WISEA_J2318+0521_b_STZ0.png)
(Zoomed position in Stellar Map of star WISEA J2318+0521 and its Exoplanet WISEA J2318+0521 b (zoom level 3))
![](WISEA_J2318+0521_b_STZ3.png)
(Synthetic Spectrum of star WISEA J2318+0521*)
![](WISEA_J2318+0521_b_Spc.png)
*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