|
Exoplanet Name : |
59 Dra b |
|
Alternate Name : |
HD 180777 b |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
25.0000 |
(Mjup) |
7948.4500 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.2200 |
(AU) |
0.2200 |
(AU Est.) |
|
Eccentricity : |
0.2000 |
|
Orbital Period(Yrs) |
0.0779 |
|
Orbital Period(Observed/Estimated) |
28.44 |
(Days Obs.) |
29.89 |
(Days Est.) |
|
Surface Gravity (G Earth) |
76.7608 |
|
Star Radiation at Atmospheric Boundary: |
148870.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
876.7 |
(K) |
|
Blackbody T 0.3(K) |
823.3 |
(K) |
|
Blackbody T 0.7(K) |
666.1 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1042.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
979.1 |
(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 : |
59 Dra |
|
Alternate Name : |
HD 180777 |
|
Star Distance(LY) : |
89.5 |
|
Stellar Radius(Rsun) : |
1.5 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
1.6 |
(Msun Measured) |
1.8 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
7137 |
(K) |
|
Spectral type : |
A9V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
1.5 |
|
IR portion[%]: |
98.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
2.9 |
|
Apparent Magnitude: |
5.1 |
|
Right Ascension(RA) |
287.2917 |
|
Declination (DEC) |
76.5606 |
|
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 |
|
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59 Dra b
59 Dra b
59 Dra b is an exoplanet orbiting the star 59 Dra, located about 89.5 light-years (27.4 pc) away from Solar System. Its discovery was publicly announced on 2006.
The host star 59 Dra has apparent magnitude of 5.1, with absolute magnitude of 2.9. It is 1.6 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 7137 with its spectral types of A9V
In this planetary system, the extrasolar planet 59 Dra b orbits around the star 59 Dra every 28.4 days with its orbital distance of 0.22 AU ( 32911531.6 km)
(Projected orbit of 59 Dra b around its host star 59 Dra)
The Star 59 Dra 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.661 AU ( 248417804.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.295 AU ( 343378324.7 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 3.498 AU ( 523232577.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 5.147 AU ( 769959658.9 km)
Radiation at Planetary Boundary of 59 Dra b : 148870.50 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 59 Dra)
Kopparapu Recent Venus for Star 59 Dra distance : 1.595 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 59 Dra distance : 2.020 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 59 Dra distance : 1.950 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 59 Dra distance : 2.136 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 59 Dra distance : 3.489 AU
Kopparapu Outer Boundary for Early Mars for Star 59 Dra distance : 3.680 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 59 Dra)
Original Kopparapu Recent Venus for Star 59 Dra distance : 1.643 AU
Original Kopparapu Runaway Greenhouse for Star 59 Dra distance : 2.066 AU
Original Kopparapu Moist Greenhouse for Star 59 Dra distance : 2.174 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 59 Dra distance : 3.553 AU
Original Kopparapu Outer Boundary for Early Mars for Star 59 Dra distance : 3.695 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 59 Dra)
(Position in Stellar Map of star 59 Dra and its Exoplanet 59 Dra b)
(Zoomed position in Stellar Map of star 59 Dra and its Exoplanet 59 Dra b (zoom level 3))
(Synthetic Spectrum of star 59 Dra*)
*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
