|
Exoplanet Name : |
HD 135872 b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
5.4890 |
(Mjup) |
1745.1617 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
4.1720 |
(AU) |
4.1720 |
(AU Est.) |
|
Eccentricity : |
0.1640 |
|
Orbital Period(Yrs) |
6.6317 |
|
Orbital Period(Observed/Estimated) |
2422.30 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
16.8536 |
|
Star Radiation at Atmospheric Boundary: |
675.8 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
227.6 |
(K) |
|
Blackbody T 0.3(K) |
213.7 |
(K) |
|
Blackbody T 0.7(K) |
172.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
270.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
254.1 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
"Radial Velocity, Astrometry" |
|
Mass Detection : |
Astrometry |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
HD 135872 |
|
Alternate Name : |
|
|
Star Distance(LY) : |
268.8 |
|
Stellar Radius(Rsun) : |
3.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.0 |
(Msun Measured) |
1.7 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4992 |
(K) |
|
Spectral type : |
K0IV |
|
UV portion[%]: |
3.2 |
|
Visible portion[%]: |
37.0 |
|
IR portion[%]: |
59.8 |
|
Metalicity : |
0.1 |
|
Absolute Magnitude: |
2.7 |
|
Apparent Magnitude: |
7.3 |
|
Right Ascension(RA) |
229.4217 |
|
Declination (DEC) |
-5.2024 |
|
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 |
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|
SIMBAD LINK |
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|
Open Exoplanet Database Link |
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HD 135872 b
HD 135872 b
HD 135872 b is an exoplanet orbiting the star HD 135872, located about 268.8 light-years (82.4 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star HD 135872 has apparent magnitude of 7.3, with absolute magnitude of 2.7.
In this planetary system, the extrasolar planet HD 135872 b orbits around the star HD 135872 every 2422.3 days with its orbital distance of 4.17 AU ( 624122316.6 km)
(Projected orbit of HD 135872 b around its host star HD 135872)
The Star HD 135872 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 2.122 AU ( 317394806.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 2.933 AU ( 438722567.8 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 4.469 AU ( 668516104.2 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 6.576 AU ( 983750733.2 km)
Radiation at Planetary Boundary of HD 135872 b : 675.77 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 135872)
Kopparapu Recent Venus for Star HD 135872 distance : 2.296 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 135872 distance : 2.907 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 135872 distance : 2.808 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 135872 distance : 3.081 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 135872 distance : 5.271 AU
Kopparapu Outer Boundary for Early Mars for Star HD 135872 distance : 5.559 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 135872)
Original Kopparapu Recent Venus for Star HD 135872 distance : 2.272 AU
Original Kopparapu Runaway Greenhouse for Star HD 135872 distance : 2.996 AU
Original Kopparapu Moist Greenhouse for Star HD 135872 distance : 3.006 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 135872 distance : 5.359 AU
Original Kopparapu Outer Boundary for Early Mars for Star HD 135872 distance : 5.573 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 135872)
(Position in Stellar Map of star HD 135872 and its Exoplanet HD 135872 b)
(Zoomed position in Stellar Map of star HD 135872 and its Exoplanet HD 135872 b (zoom level 3))
(Synthetic Spectrum of star HD 135872*)
*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
