Exoplanet Name : |
HT Lup (AB)b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
30.8000 |
(Mjup) |
9792.4904 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
7570.0000 |
(AU) |
7570.0000 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
515523.1890 |
Orbital Period(Observed/Estimated) |
188300000.00 |
(Days Obs.) |
190184032.92 |
(Days Est.) |
Surface Gravity (G Earth) |
94.5693 |
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
4.6 |
(K) |
Blackbody T 0.3(K) |
4.3 |
(K) |
Blackbody T 0.7(K) |
3.5 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
5.4 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
5.1 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
"Imaging, Astrometry" |
Mass Detection : |
|
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
HT Lup |
Alternate Name : |
"CD-33 10685, 2MASS J15451286-3417305, GHE 30, KOH 48 A" |
Star Distance(LY) : |
500.8 |
Stellar Radius(Rsun) : |
3.5 |
(Rsun Measured) |
Stellar Mass(Msun) : |
1.6 |
(Msun Measured) |
1.6 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
4506 |
(K) |
Spectral type : |
K3Ve |
UV portion[%]: |
1.6 |
Visible portion[%]: |
31.2 |
IR portion[%]: |
67.2 |
Metalicity : |
0.0 |
Absolute Magnitude: |
4.3 |
Apparent Magnitude: |
10.2 |
Right Ascension(RA) |
236.3036 |
Declination (DEC) |
-34.2918 |
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 |
|
![](HT_Lup_(AB)b_CSun.png) |
![](HT_Lup_(AB)b_CJup.png) |
![](HT_Lup_(AB)b_CNep.png) |
![](HT_Lup_(AB)b_CEar.png) |
/
HT Lup (AB)b
HT Lup (AB)b
HT Lup (AB)b is an exoplanet orbiting the star HT Lup, located about 500.8 light-years (153.5 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HT Lup has apparent magnitude of 10.2, with absolute magnitude of 4.3. It is 1.6 times more massive and 3.5 times bigger compared with our Sun. The surface temperature is 4506 with its spectral types of K3Ve
In this planetary system, the extrasolar planet HT Lup (AB)b orbits around the star HT Lup every 188300000.0 days with its orbital distance of 7570.00 AU ( 1132455881199.0 km)
(Projected orbit of HT Lup (AB)b around its host star HT Lup)
![](HT_Lup_(AB)b_Orb.png)
The Star HT Lup 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.557 AU ( 232939827.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.152 AU ( 321983715.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 3.280 AU ( 490631928.1 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.826 AU ( 721986375.5 km)
Radiation at Planetary Boundary of HT Lup (AB)b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HT Lup)
![](HT_Lup_(AB)b_OrbH.png)
Kopparapu Recent Venus for Star HT Lup distance : 1.719 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HT Lup distance : 2.177 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HT Lup distance : 2.102 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HT Lup distance : 2.309 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HT Lup distance : 4.031 AU
Kopparapu Outer Boundary for Early Mars for Star HT Lup distance : 4.252 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HT Lup)
![](HT_Lup_(AB)b_OrbK.png)
Original Kopparapu Recent Venus for Star HT Lup distance : 1.697 AU
Original Kopparapu Runaway Greenhouse for Star HT Lup distance : 2.247 AU
Original Kopparapu Moist Greenhouse for Star HT Lup distance : 2.245 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HT Lup distance : 4.096 AU
Original Kopparapu Outer Boundary for Early Mars for Star HT Lup distance : 4.260 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HT Lup)
![](HT_Lup_(AB)b_OrbKO.png)
(Position in Stellar Map of star HT Lup and its Exoplanet HT Lup (AB)b)
![](HT_Lup_(AB)b_STZ0.png)
(Zoomed position in Stellar Map of star HT Lup and its Exoplanet HT Lup (AB)b (zoom level 3))
![](HT_Lup_(AB)b_STZ3.png)
(Synthetic Spectrum of star HT Lup*)
![](HT_Lup_(AB)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