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Exoplanet Name : |
HIP 81208 C b |
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Alternate Name : |
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Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
14.8000 |
(Mjup) |
4705.4824 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
23.0400 |
(AU) |
23.0400 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0000 |
|
Orbital Period(Observed/Estimated) |
0.00 |
(Days Obs.) |
109937.80 |
(Days Est.) |
|
Surface Gravity (G Earth) |
45.4424 |
|
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
|
Measured Temperature (K) |
2050.0 |
(K) |
|
Blackbody T 0.1(K) |
13.1 |
(K) |
|
Blackbody T 0.3(K) |
12.3 |
(K) |
|
Blackbody T 0.7(K) |
10.0 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
15.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
14.6 |
(K) |
|
Size Class: |
Jupiter-size |
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Mass Class: |
|
|
Detection Type : |
Imaging |
|
Mass Detection : |
Spectrum |
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Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
HIP 81208 C |
|
Alternate Name : |
|
|
Star Distance(LY) : |
485.0 |
|
Stellar Radius(Rsun) : |
0.2 |
(Rsun Estimated) |
|
Stellar Mass(Msun) : |
0.1 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3300 |
(K) |
|
Spectral type : |
M9 |
|
UV portion[%]: |
0.2 |
|
Visible portion[%]: |
11.2 |
|
IR portion[%]: |
88.6 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
16.1 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
248.8125 |
|
Declination (DEC) |
-35.7244 |
|
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 |
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|
Discovery Paper - Journal |
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|
Discovery Paper - URL |
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SIMBAD LINK |
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Open Exoplanet Database Link |
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HIP 81208 C b
HIP 81208 C b
HIP 81208 C b is an exoplanet orbiting the star HIP 81208 C, located about 485.0 light-years (148.7 pc) away from Solar System. Its discovery was publicly announced on 2023.
The host star HIP 81208 C has apparent magnitude of 22.0, with absolute magnitude of 16.1. It is 0.1 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
(Projected orbit of HIP 81208 C b around its host star HIP 81208 C)
The Star HIP 81208 C 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.039 AU ( 5817882.7 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.054 AU ( 8041834.2 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.082 AU ( 12253975.7 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.121 AU ( 18032262.1 km)
Radiation at Planetary Boundary of HIP 81208 C b : 0.01 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 81208 C)
Kopparapu Recent Venus for Star HIP 81208 C distance : 0.044 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 81208 C distance : 0.056 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 81208 C distance : 0.054 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 81208 C distance : 0.059 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 81208 C distance : 0.110 AU
Kopparapu Outer Boundary for Early Mars for Star HIP 81208 C distance : 0.116 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 81208 C)
Original Kopparapu Recent Venus for Star HIP 81208 C distance : 0.044 AU
Original Kopparapu Runaway Greenhouse for Star HIP 81208 C distance : 0.058 AU
Original Kopparapu Moist Greenhouse for Star HIP 81208 C distance : 0.058 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 81208 C distance : 0.111 AU
Original Kopparapu Outer Boundary for Early Mars for Star HIP 81208 C distance : 0.116 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 81208 C)
(Position in Stellar Map of star HIP 81208 C and its Exoplanet HIP 81208 C b)
(Zoomed position in Stellar Map of star HIP 81208 C and its Exoplanet HIP 81208 C b (zoom level 3))
(Synthetic Spectrum of star HIP 81208 C*)
*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
