Exoplanet Name : |
HD 11505 Ab |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
7.8990 |
(Mjup) |
2511.3923 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
20.2470 |
(AU) |
20.2470 |
(AU Est.) |
Eccentricity : |
0.1440 |
Orbital Period(Yrs) |
89.4409 |
Orbital Period(Observed/Estimated) |
32669.20 |
(Days Obs.) |
32787.83 |
(Days Est.) |
Surface Gravity (G Earth) |
24.2534 |
Star Radiation at Atmospheric Boundary: |
4.7 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
65.7 |
(K) |
Blackbody T 0.3(K) |
61.7 |
(K) |
Blackbody T 0.7(K) |
49.9 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
78.1 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
73.4 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
"Radial Velocity, Astrometry" |
Mass Detection : |
Astrometry |
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
HD 11505 A |
Alternate Name : |
LLO 4 |
Star Distance(LY) : |
127.1 |
Stellar Radius(Rsun) : |
1.2 |
(Rsun Measured) |
Stellar Mass(Msun) : |
1.0 |
(Msun Measured) |
1.0 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
5757 |
(K) |
Spectral type : |
G2V |
UV portion[%]: |
7.8 |
Visible portion[%]: |
44.7 |
IR portion[%]: |
47.5 |
Metalicity : |
-0.2 |
Absolute Magnitude: |
4.5 |
Apparent Magnitude: |
7.4 |
Right Ascension(RA) |
28.2758 |
Declination (DEC) |
-1.3269 |
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 |
|
![](HD_11505_Ab_CSun.png) |
![](HD_11505_Ab_CJup.png) |
![](HD_11505_Ab_CNep.png) |
![](HD_11505_Ab_CEar.png) |
/
HD 11505 Ab
HD 11505 Ab
HD 11505 Ab is an exoplanet orbiting the star HD 11505 A, located about 127.1 light-years (39.0 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 11505 A has apparent magnitude of 7.4, with absolute magnitude of 4.5. It is 1.0 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5757 with its spectral types of G2V
In this planetary system, the extrasolar planet HD 11505 Ab orbits around the star HD 11505 A every 32669.2 days with its orbital distance of 20.25 AU ( 3028908088.1 km)
(Projected orbit of HD 11505 Ab around its host star HD 11505 A)
![](HD_11505_Ab_Orb.png)
The Star HD 11505 A 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.858 AU ( 128356680.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.186 AU ( 177422475.9 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.807 AU ( 270352589.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.659 AU ( 397835679.2 km)
Radiation at Planetary Boundary of HD 11505 Ab : 4.69 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 11505 A)
![](HD_11505_Ab_OrbH.png)
Kopparapu Recent Venus for Star HD 11505 A distance : 0.890 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 11505 A distance : 1.128 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 11505 A distance : 1.089 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 11505 A distance : 1.194 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 11505 A distance : 1.992 AU
Kopparapu Outer Boundary for Early Mars for Star HD 11505 A distance : 2.101 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 11505 A)
![](HD_11505_Ab_OrbK.png)
Original Kopparapu Recent Venus for Star HD 11505 A distance : 0.891 AU
Original Kopparapu Runaway Greenhouse for Star HD 11505 A distance : 1.159 AU
Original Kopparapu Moist Greenhouse for Star HD 11505 A distance : 1.179 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 11505 A distance : 2.027 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 11505 A distance : 2.108 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 11505 A)
![](HD_11505_Ab_OrbKO.png)
(Position in Stellar Map of star HD 11505 A and its Exoplanet HD 11505 Ab)
![](HD_11505_Ab_STZ0.png)
(Zoomed position in Stellar Map of star HD 11505 A and its Exoplanet HD 11505 Ab (zoom level 3))
![](HD_11505_Ab_STZ3.png)
(Synthetic Spectrum of star HD 11505 A*)
![](HD_11505_Ab_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