|
Exoplanet Name : |
GD 140 b |
|
Alternate Name : |
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|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
3.7400 |
(Mjup) |
1189.0881 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0000 |
(AU) |
0.0000 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0000 |
|
Orbital Period(Observed/Estimated) |
0.00 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
11.4834 |
|
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
0.0 |
(K) |
|
Blackbody T 0.3(K) |
0.0 |
(K) |
|
Blackbody T 0.7(K) |
0.0 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
0.0 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
0.0 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Astrometry |
|
Mass Detection : |
Astrometry |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
GD 140 |
|
Alternate Name : |
HIP 56662 |
|
Star Distance(LY) : |
51.2 |
|
Stellar Radius(Rsun) : |
1.0 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
1.0 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5500 |
(K) |
|
Spectral type : |
WD |
|
UV portion[%]: |
6.9 |
|
Visible portion[%]: |
43.2 |
|
IR portion[%]: |
49.9 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
11.5 |
|
Apparent Magnitude: |
12.5 |
|
Right Ascension(RA) |
174.2708 |
|
Declination (DEC) |
29.7994 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
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Discovered by |
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|
Discovery Paper - Authors |
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|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
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|
Open Exoplanet Database Link |
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/
GD 140 b
GD 140 b
GD 140 b is an exoplanet orbiting the star GD 140, located about 51.2 light-years (15.7 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star GD 140 has apparent magnitude of 12.5, with absolute magnitude of 11.5. It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of WD
(Projected orbit of GD 140 b around its host star GD 140)
The Star GD 140 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.624 AU ( 93403578.0 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.863 AU ( 129108154.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.315 AU ( 196732255.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.935 AU ( 289500131.9 km)
Radiation at Planetary Boundary of GD 140 b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GD 140)
Kopparapu Recent Venus for Star GD 140 distance : 0.658 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star GD 140 distance : 0.833 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GD 140 distance : 0.804 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star GD 140 distance : 0.882 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star GD 140 distance : 1.483 AU
Kopparapu Outer Boundary for Early Mars for Star GD 140 distance : 1.564 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star GD 140)
Original Kopparapu Recent Venus for Star GD 140 distance : 0.655 AU
Original Kopparapu Runaway Greenhouse for Star GD 140 distance : 0.857 AU
Original Kopparapu Moist Greenhouse for Star GD 140 distance : 0.867 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GD 140 distance : 1.509 AU
Original Kopparapu Outer Boundary for Early Mars for Star GD 140 distance : 1.569 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star GD 140)
(Position in Stellar Map of star GD 140 and its Exoplanet GD 140 b)
(Zoomed position in Stellar Map of star GD 140 and its Exoplanet GD 140 b (zoom level 3))
(Synthetic Spectrum of star GD 140*)
*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
