|
Exoplanet Name : |
HD 210702 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
1.2160 |
(Rjup) |
13.6301 |
(Rearth) |
|
Mass (Mjup / Me): |
1.8080 |
(Mjup) |
574.8319 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.1480 |
(AU) |
1.1480 |
(AU Est.) |
|
Eccentricity : |
0.0280 |
|
Orbital Period(Yrs) |
0.9694 |
|
Orbital Period(Observed/Estimated) |
354.10 |
(Days Obs.) |
354.07 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.0941 |
|
Star Radiation at Atmospheric Boundary: |
13533.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
481.4 |
(K) |
|
Blackbody T 0.3(K) |
452.1 |
(K) |
|
Blackbody T 0.7(K) |
365.8 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
572.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
537.6 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Theoretical |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 210702 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
179.2 |
|
Stellar Radius(Rsun) : |
4.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.6 |
(Msun Measured) |
1.6 |
(Msun Estimated) |
|
Star Age : |
1.4 |
(GY) |
|
Temperature : |
4951 |
(K) |
|
Spectral type : |
K1IV |
|
UV portion[%]: |
3.0 |
|
Visible portion[%]: |
36.6 |
|
IR portion[%]: |
60.4 |
|
Metalicity : |
0.1 |
|
Absolute Magnitude: |
2.2 |
|
Apparent Magnitude: |
5.9 |
|
Right Ascension(RA) |
332.9639 |
|
Declination (DEC) |
16.0406 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
01681-01751 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"Bowler,rendan.; Johnson,ohnsher; Marcy,eoffrey.; Henry,regory.; Peek,athryn..; Fischer,ebra.; Clubb,elsey.; Liu,ichael.; Reffert,abine; Schwab,hristian; Lowe,homas." |
|
Discovery Paper - Title |
Retired A Stars and Their Companions. III. Comparing the Mass-Period Distributions of Planets Around A-Type Stars and Sun-Like Stars |
|
Discovery Paper - Journal |
"The Astrophysical Journal,olume 709,umber 1" |
|
Discovery Paper - URL |
http://iopscience.iop.org/article/10.1088/0004-637X/709/1/396/meta |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+210702+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%20210702%20b/ |
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HD 210702 b
HD 210702 b
HD 210702 b is an exoplanet orbiting the star HD 210702, located about 179.2 light-years (54.9 pc) away from Solar System. Its discovery was publicly announced on 2007.
The host star HD 210702 has apparent magnitude of 5.9, with absolute magnitude of 2.2. It is 1.6 times more massive and 4.9 times bigger compared with our Sun. The surface temperature is 4951 with its spectral types of K1IV
In this planetary system, the extrasolar planet HD 210702 b orbits around the star HD 210702 every 354.1 days with its orbital distance of 1.15 AU ( 171738355.6 km)
(Projected orbit of HD 210702 b around its host star HD 210702)
The Star HD 210702 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 2.613 AU ( 390849056.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 3.611 AU ( 540255537.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 5.503 AU ( 823229880.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 8.098 AU ( 1211418832.2 km)
Radiation at Planetary Boundary of HD 210702 b : 13533.90 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 210702)
Kopparapu Recent Venus for Star HD 210702 distance : 2.833 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 210702 distance : 3.587 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 210702 distance : 3.464 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 210702 distance : 3.802 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 210702 distance : 6.514 AU
Kopparapu Outer Boundary for Early Mars for Star HD 210702 distance : 6.871 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 210702)
Original Kopparapu Recent Venus for Star HD 210702 distance : 2.802 AU
Original Kopparapu Runaway Greenhouse for Star HD 210702 distance : 3.697 AU
Original Kopparapu Moist Greenhouse for Star HD 210702 distance : 3.707 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 210702 distance : 6.623 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 210702 distance : 6.887 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 210702)
(Position in Stellar Map of star HD 210702 and its Exoplanet HD 210702 b)
(Zoomed position in Stellar Map of star HD 210702 and its Exoplanet HD 210702 b (zoom level 3))
(Synthetic Spectrum of star HD 210702*)
*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
