Exoplanet Name : |
Pollux b |
Alternate Name : |
"beta Gem b, HD 62509 b" |
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
2.9000 |
(Mjup) |
922.0202 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
1.6900 |
(AU) |
1.6900 |
(AU Est.) |
Eccentricity : |
0.0200 |
Orbital Period(Yrs) |
1.6143 |
Orbital Period(Observed/Estimated) |
589.64 |
(Days Obs.) |
661.85 |
(Days Est.) |
Surface Gravity (G Earth) |
8.9043 |
Star Radiation at Atmospheric Boundary: |
17602.6 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
514.1 |
(K) |
Blackbody T 0.3(K) |
482.8 |
(K) |
Blackbody T 0.7(K) |
390.6 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
611.4 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
574.1 |
(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 : |
Pollux |
Alternate Name : |
"beta Gem, HD 62509" |
Star Distance(LY) : |
33.8 |
Stellar Radius(Rsun) : |
9.3 |
(Rsun Measured) |
Stellar Mass(Msun) : |
1.5 |
(Msun Measured) |
1.9 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
4666 |
(K) |
Spectral type : |
K0IIIb |
UV portion[%]: |
2.1 |
Visible portion[%]: |
33.7 |
IR portion[%]: |
64.2 |
Metalicity : |
0.2 |
Absolute Magnitude: |
1.1 |
Apparent Magnitude: |
1.1 |
Right Ascension(RA) |
116.3290 |
Declination (DEC) |
28.0261 |
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.u-strasbg.fr/simbad/sim-basic?Ident=HD+62509+&submit=SIMBAD+search |
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/HD%2062509%20b/ |
![](Pollux_b_CSun.png) |
![](Pollux_b_CJup.png) |
![](Pollux_b_CNep.png) |
![](Pollux_b_CEar.png) |
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Pollux b
Pollux b
Pollux b is an exoplanet orbiting the star Pollux, located about 33.8 light-years (10.4 pc) away from Solar System. Its discovery was publicly announced on 2006.
The host star Pollux has apparent magnitude of 1.1, with absolute magnitude of 1.1. It is 1.5 times more massive and 9.3 times bigger compared with our Sun. The surface temperature is 4666 with its spectral types of K0IIIb
In this planetary system, the extrasolar planet Pollux b orbits around the star Pollux every 589.6 days with its orbital distance of 1.69 AU ( 252820401.5 km)
(Projected orbit of Pollux b around its host star Pollux)
![](Pollux_b_Orb.png)
The Star Pollux 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 4.386 AU ( 656191393.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 6.063 AU ( 907027989.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 9.239 AU ( 1382109930.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 13.595 AU ( 2033835309.1 km)
Radiation at Planetary Boundary of Pollux b : 17602.58 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Pollux)
![](Pollux_b_OrbH.png)
Kopparapu Recent Venus for Star Pollux distance : 4.815 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star Pollux distance : 6.095 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Pollux distance : 5.888 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star Pollux distance : 6.464 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star Pollux distance : 11.205 AU
Kopparapu Outer Boundary for Early Mars for Star Pollux distance : 11.820 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star Pollux)
![](Pollux_b_OrbK.png)
Original Kopparapu Recent Venus for Star Pollux distance : 4.753 AU
Original Kopparapu Runaway Greenhouse for Star Pollux distance : 6.289 AU
Original Kopparapu Moist Greenhouse for Star Pollux distance : 6.289 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Pollux distance : 11.390 AU
Original Kopparapu Outer Boundary for Early Mars for Star Pollux distance : 11.845 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star Pollux)
![](Pollux_b_OrbKO.png)
(Position in Stellar Map of star Pollux and its Exoplanet Pollux b)
![](Pollux_b_STZ0.png)
(Zoomed position in Stellar Map of star Pollux and its Exoplanet Pollux b (zoom level 3))
![](Pollux_b_STZ3.png)
(Synthetic Spectrum of star Pollux*)
![](Pollux_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