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Exoplanet Name : |
2M1059-21 b |
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Alternate Name : |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
66.9500 |
(Mjup) |
21285.9491 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.8000 |
(AU) |
0.8000 |
(AU Est.) |
|
Eccentricity : |
0.1460 |
|
Orbital Period(Yrs) |
1.8891 |
|
Orbital Period(Observed/Estimated) |
690.00 |
(Days Obs.) |
290.39 |
(Days Est.) |
|
Surface Gravity (G Earth) |
205.5655 |
|
Star Radiation at Atmospheric Boundary: |
861.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
241.8 |
(K) |
|
Blackbody T 0.3(K) |
227.0 |
(K) |
|
Blackbody T 0.7(K) |
183.7 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
287.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
270.0 |
(K) |
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Size Class: |
Jupiter-size |
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Mass Class: |
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Detection Type : |
Astrometry |
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Mass Detection : |
Astrometry |
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Radius Detection : |
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Habitability by Solar Eq. Astronomical Unit: |
Habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
2M1059-21 |
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Alternate Name : |
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Star Distance(LY) : |
103.8 |
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Stellar Radius(Rsun) : |
0.7 |
(Rsun Estimated) |
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Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5500 |
(K) |
|
Spectral type : |
L2 |
|
UV portion[%]: |
6.9 |
|
Visible portion[%]: |
43.2 |
|
IR portion[%]: |
49.9 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
19.5 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
164.9625 |
|
Declination (DEC) |
-21.2192 |
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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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2M1059-21 b
2M1059-21 b
2M1059-21 b is an exoplanet orbiting the star 2M1059-21, located about 103.8 light-years (31.8 pc) away from Solar System. Its discovery was publicly announced on 2020.
The host star 2M1059-21 has apparent magnitude of 22.0, with absolute magnitude of 19.5. It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of L2
In this planetary system, the extrasolar planet 2M1059-21 b orbits around the star 2M1059-21 every 690.0 days with its orbital distance of 0.80 AU ( 119678296.6 km)
(Projected orbit of 2M1059-21 b around its host star 2M1059-21)
The Star 2M1059-21 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.459 AU ( 68699845.6 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.635 AU ( 94961140.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.967 AU ( 144699762.6 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.423 AU ( 212932039.5 km)
Radiation at Planetary Boundary of 2M1059-21 b : 861.03 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M1059-21)
Kopparapu Recent Venus for Star 2M1059-21 distance : 0.484 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M1059-21 distance : 0.613 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M1059-21 distance : 0.592 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M1059-21 distance : 0.649 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M1059-21 distance : 1.091 AU
Kopparapu Outer Boundary for Early Mars for Star 2M1059-21 distance : 1.150 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M1059-21)
Original Kopparapu Recent Venus for Star 2M1059-21 distance : 0.482 AU
Original Kopparapu Runaway Greenhouse for Star 2M1059-21 distance : 0.630 AU
Original Kopparapu Moist Greenhouse for Star 2M1059-21 distance : 0.638 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M1059-21 distance : 1.110 AU
Original Kopparapu Outer Boundary for Early Mars for Star 2M1059-21 distance : 1.154 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M1059-21)
(Position in Stellar Map of star 2M1059-21 and its Exoplanet 2M1059-21 b)
(Zoomed position in Stellar Map of star 2M1059-21 and its Exoplanet 2M1059-21 b (zoom level 3))
(Synthetic Spectrum of star 2M1059-21*)
*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
