Exoplanet Name : |
LP 81-30 b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
45.0000 |
(Mjup) |
14307.2100 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.0000 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
0.0000 |
Orbital Period(Observed/Estimated) |
0.00 |
(Days Obs.) |
0.00 |
(Days Est.) |
Surface Gravity (G Earth) |
138.1695 |
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
0.0 |
(K) |
Blackbody T 0.3(K) |
0.0 |
(K) |
Blackbody T 0.7(K) |
0.0 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
0.0 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
0.0 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
Imaging |
Mass Detection : |
Spectrum |
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
LP 81-30 |
Alternate Name : |
|
Star Distance(LY) : |
89.2 |
Stellar Radius(Rsun) : |
0.6 |
(Rsun Estimated) |
Stellar Mass(Msun) : |
0.0 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
3700 |
(K) |
Spectral type : |
M1.0V |
UV portion[%]: |
0.3 |
Visible portion[%]: |
13.2 |
IR portion[%]: |
86.5 |
Metalicity : |
0.0 |
Absolute Magnitude: |
9.8 |
Apparent Magnitude: |
12.0 |
Right Ascension(RA) |
214.0471 |
Declination (DEC) |
23.3914 |
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 |
|
![](LP_81-30_b_CSun.png) |
![](LP_81-30_b_CJup.png) |
![](LP_81-30_b_CNep.png) |
![](LP_81-30_b_CEar.png) |
/
LP 81-30 b
LP 81-30 b
LP 81-30 b is an exoplanet orbiting the star LP 81-30, located about 89.2 light-years (27.3 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star LP 81-30 has apparent magnitude of 12.0, with absolute magnitude of 9.8.
(Projected orbit of LP 81-30 b around its host star LP 81-30)
![](LP_81-30_b_Orb.png)
The Star LP 81-30 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.170 AU ( 25374327.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.234 AU ( 35073951.0 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.357 AU ( 53444939.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.526 AU ( 78646569.7 km)
Radiation at Planetary Boundary of LP 81-30 b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star LP 81-30)
![](LP_81-30_b_OrbH.png)
Kopparapu Recent Venus for Star LP 81-30 distance : 0.191 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star LP 81-30 distance : 0.242 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star LP 81-30 distance : 0.234 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star LP 81-30 distance : 0.257 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star LP 81-30 distance : 0.466 AU
Kopparapu Outer Boundary for Early Mars for Star LP 81-30 distance : 0.492 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star LP 81-30)
![](LP_81-30_b_OrbK.png)
Original Kopparapu Recent Venus for Star LP 81-30 distance : 0.189 AU
Original Kopparapu Runaway Greenhouse for Star LP 81-30 distance : 0.250 AU
Original Kopparapu Moist Greenhouse for Star LP 81-30 distance : 0.250 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star LP 81-30 distance : 0.473 AU
Original Kopparapu Outer Boundary for Early Mars for Star LP 81-30 distance : 0.492 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star LP 81-30)
![](LP_81-30_b_OrbKO.png)
(Position in Stellar Map of star LP 81-30 and its Exoplanet LP 81-30 b)
![](LP_81-30_b_STZ0.png)
(Zoomed position in Stellar Map of star LP 81-30 and its Exoplanet LP 81-30 b (zoom level 3))
![](LP_81-30_b_STZ3.png)
(Synthetic Spectrum of star LP 81-30*)
![](LP_81-30_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