|
Exoplanet Name : |
HD 238914 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
6.0000 |
(Mjup) |
1907.6280 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
5.7000 |
(AU) |
5.7000 |
(AU Est.) |
|
Eccentricity : |
0.5600 |
|
Orbital Period(Yrs) |
11.2249 |
|
Orbital Period(Observed/Estimated) |
4100.00 |
(Days Obs.) |
4099.62 |
(Days Est.) |
|
Surface Gravity (G Earth) |
18.4226 |
|
Star Radiation at Atmospheric Boundary: |
3163.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
334.7 |
(K) |
|
Blackbody T 0.3(K) |
314.3 |
(K) |
|
Blackbody T 0.7(K) |
254.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
398.1 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
373.8 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
|
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 238914 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
1924.3 |
|
Stellar Radius(Rsun) : |
12.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.5 |
(Msun Measured) |
1.5 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4769 |
(K) |
|
Spectral type : |
K7 |
|
UV portion[%]: |
2.4 |
|
Visible portion[%]: |
35.2 |
|
IR portion[%]: |
62.5 |
|
Metalicity : |
-0.2 |
|
Absolute Magnitude: |
3.1 |
|
Apparent Magnitude: |
12.0 |
|
Right Ascension(RA) |
279.5842 |
|
Declination (DEC) |
59.2539 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
03917-01107 |
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+238914+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
 |
 |
 |
 |
/
HD 238914 b
HD 238914 b
HD 238914 b is an exoplanet orbiting the star HD 238914, located about 1924.3 light-years (590.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star HD 238914 has apparent magnitude of 12.0, with absolute magnitude of 3.1. It is 1.5 times more massive and 12.7 times bigger compared with our Sun. The surface temperature is 4769 with its spectral types of K7
In this planetary system, the extrasolar planet HD 238914 b orbits around the star HD 238914 every 4100.0 days with its orbital distance of 5.70 AU ( 852707863.0 km)
(Projected orbit of HD 238914 b around its host star HD 238914)
The Star HD 238914 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 6.272 AU ( 938298800.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 8.670 AU ( 1296974148.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 13.211 AU ( 1976301582.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 19.440 AU ( 2908214355.2 km)
Radiation at Planetary Boundary of HD 238914 b : 3163.89 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 238914)
Kopparapu Recent Venus for Star HD 238914 distance : 6.856 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 238914 distance : 8.680 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 238914 distance : 8.384 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 238914 distance : 9.204 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 238914 distance : 15.884 AU
Kopparapu Outer Boundary for Early Mars for Star HD 238914 distance : 16.755 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 238914)
Original Kopparapu Recent Venus for Star HD 238914 distance : 6.771 AU
Original Kopparapu Runaway Greenhouse for Star HD 238914 distance : 8.952 AU
Original Kopparapu Moist Greenhouse for Star HD 238914 distance : 8.960 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 238914 distance : 16.147 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 238914 distance : 16.792 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 238914)
(Position in Stellar Map of star HD 238914 and its Exoplanet HD 238914 b)
(Zoomed position in Stellar Map of star HD 238914 and its Exoplanet HD 238914 b (zoom level 3))
(Synthetic Spectrum of star HD 238914*)
*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
