|
Exoplanet Name : |
HD 121504 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
1.2200 |
(Mjup) |
387.8844 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.3300 |
(AU) |
0.3300 |
(AU Est.) |
|
Eccentricity : |
0.0300 |
|
Orbital Period(Yrs) |
0.1734 |
|
Orbital Period(Observed/Estimated) |
63.33 |
(Days Obs.) |
63.74 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.7459 |
|
Star Radiation at Atmospheric Boundary: |
19294.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
526.0 |
(K) |
|
Blackbody T 0.3(K) |
494.0 |
(K) |
|
Blackbody T 0.7(K) |
399.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
625.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
587.5 |
(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 121504 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
134.6 |
|
Stellar Radius(Rsun) : |
1.1 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
1.2 |
(Msun Measured) |
1.2 |
(Msun Estimated) |
|
Star Age : |
1.6 |
(GY) |
|
Temperature : |
6075 |
(K) |
|
Spectral type : |
G2 V |
|
UV portion[%]: |
7.8 |
|
Visible portion[%]: |
44.8 |
|
IR portion[%]: |
47.4 |
|
Metalicity : |
0.2 |
|
Absolute Magnitude: |
4.5 |
|
Apparent Magnitude: |
7.5 |
|
Right Ascension(RA) |
209.3218 |
|
Declination (DEC) |
-56.0400 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
0 |
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
0 |
|
Discovery Paper - URL |
0 |
|
SIMBAD LINK |
http://simbad.harvard.edu/simbad/sim-basic?Ident=HD+121504+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%20121504%20b/ |
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HD 121504 b
HD 121504 b
HD 121504 b is an exoplanet orbiting the star HD 121504, located about 134.6 light-years (41.3 pc) away from Solar System. Its discovery was publicly announced on 2003.
The host star HD 121504 has apparent magnitude of 7.5, with absolute magnitude of 4.5. It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6075 with its spectral types of G2 V
In this planetary system, the extrasolar planet HD 121504 b orbits around the star HD 121504 every 63.3 days with its orbital distance of 0.33 AU ( 49367297.3 km)
(Projected orbit of HD 121504 b around its host star HD 121504)
The Star HD 121504 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.897 AU ( 134149022.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.240 AU ( 185429005.8 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.889 AU ( 282552769.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.779 AU ( 415788778.2 km)
Radiation at Planetary Boundary of HD 121504 b : 19294.60 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 121504)
Kopparapu Recent Venus for Star HD 121504 distance : 0.913 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 121504 distance : 1.156 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 121504 distance : 1.116 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 121504 distance : 1.224 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 121504 distance : 2.027 AU
Kopparapu Outer Boundary for Early Mars for Star HD 121504 distance : 2.138 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 121504)
Original Kopparapu Recent Venus for Star HD 121504 distance : 0.920 AU
Original Kopparapu Runaway Greenhouse for Star HD 121504 distance : 1.187 AU
Original Kopparapu Moist Greenhouse for Star HD 121504 distance : 1.217 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 121504 distance : 2.063 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 121504 distance : 2.145 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 121504)
(Position in Stellar Map of star HD 121504 and its Exoplanet HD 121504 b)
(Zoomed position in Stellar Map of star HD 121504 and its Exoplanet HD 121504 b (zoom level 3))
(Synthetic Spectrum of star HD 121504*)
*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
