Exoplanet Name : |
HD 29985 b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
5.4730 |
(Mjup) |
1740.0747 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
13.3900 |
(AU) |
13.3900 |
(AU Est.) |
Eccentricity : |
0.2610 |
Orbital Period(Yrs) |
56.4204 |
Orbital Period(Observed/Estimated) |
20608.10 |
(Days Obs.) |
20664.76 |
(Days Est.) |
Surface Gravity (G Earth) |
16.8045 |
Star Radiation at Atmospheric Boundary: |
1.1 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
45.5 |
(K) |
Blackbody T 0.3(K) |
42.7 |
(K) |
Blackbody T 0.7(K) |
34.6 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
54.1 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
50.8 |
(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 29985 |
Alternate Name : |
|
Star Distance(LY) : |
102.0 |
Stellar Radius(Rsun) : |
0.6 |
(Rsun Measured) |
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.8 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
4678 |
(K) |
Spectral type : |
K4V |
UV portion[%]: |
2.1 |
Visible portion[%]: |
33.9 |
IR portion[%]: |
64.0 |
Metalicity : |
-0.2 |
Absolute Magnitude: |
7.6 |
Apparent Magnitude: |
10.0 |
Right Ascension(RA) |
70.5219 |
Declination (DEC) |
-33.9198 |
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_29985_b_CSun.png) |
![](HD_29985_b_CJup.png) |
![](HD_29985_b_CNep.png) |
![](HD_29985_b_CEar.png) |
/
HD 29985 b
HD 29985 b
HD 29985 b is an exoplanet orbiting the star HD 29985, located about 102.0 light-years (31.3 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 29985 has apparent magnitude of 10.0, with absolute magnitude of 7.6. It is 0.8 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4678 with its spectral types of K4V
In this planetary system, the extrasolar planet HD 29985 b orbits around the star HD 29985 every 20608.1 days with its orbital distance of 13.39 AU ( 2003115488.7 km)
(Projected orbit of HD 29985 b around its host star HD 29985)
![](HD_29985_b_Orb.png)
The Star HD 29985 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.272 AU ( 40751553.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.377 AU ( 56329296.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.574 AU ( 85833382.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.844 AU ( 126307582.2 km)
Radiation at Planetary Boundary of HD 29985 b : 1.08 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 29985)
![](HD_29985_b_OrbH.png)
Kopparapu Recent Venus for Star HD 29985 distance : 0.299 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 29985 distance : 0.378 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 29985 distance : 0.365 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 29985 distance : 0.401 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 29985 distance : 0.695 AU
Kopparapu Outer Boundary for Early Mars for Star HD 29985 distance : 0.733 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 29985)
![](HD_29985_b_OrbK.png)
Original Kopparapu Recent Venus for Star HD 29985 distance : 0.295 AU
Original Kopparapu Runaway Greenhouse for Star HD 29985 distance : 0.390 AU
Original Kopparapu Moist Greenhouse for Star HD 29985 distance : 0.390 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 29985 distance : 0.707 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 29985 distance : 0.735 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 29985)
![](HD_29985_b_OrbKO.png)
(Position in Stellar Map of star HD 29985 and its Exoplanet HD 29985 b)
![](HD_29985_b_STZ0.png)
(Zoomed position in Stellar Map of star HD 29985 and its Exoplanet HD 29985 b (zoom level 3))
![](HD_29985_b_STZ3.png)
(Synthetic Spectrum of star HD 29985*)
![](HD_29985_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