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Exoplanet Name : |
MOA-2011-BLG-291 b |
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Alternate Name : |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.2471 |
(Rjup) |
2.7694 |
(Rearth) |
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Mass (Mjup / Me): |
0.0850 |
(Mjup) |
27.0247 |
(Mearth) |
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Semi Major Axis / Orbital Distance Calculated |
1.4000 |
(AU) |
1.4000 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0000 |
|
Orbital Period(Observed/Estimated) |
0.00 |
(Days Obs.) |
1289.94 |
(Days Est.) |
|
Surface Gravity (G Earth) |
3.5237 |
|
Star Radiation at Atmospheric Boundary: |
4.5 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
65.2 |
(K) |
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Blackbody T 0.3(K) |
61.2 |
(K) |
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Blackbody T 0.7(K) |
49.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
77.5 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
72.8 |
(K) |
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Size Class: |
sub-Neptune-size |
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Mass Class: |
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Detection Type : |
Microlensing |
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Mass Detection : |
Microlensing |
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Radius Detection : |
|
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Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
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Habitability by Kopparapu: |
Not habitable |
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Star Name : |
MOA-2011-BLG-291 |
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Alternate Name : |
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Star Distance(LY) : |
22830.9 |
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Stellar Radius(Rsun) : |
0.2 |
(Rsun Estimated) |
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Stellar Mass(Msun) : |
0.2 |
(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 |
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Metalicity : |
0.0 |
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Absolute Magnitude: |
7.8 |
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Apparent Magnitude: |
22.0 |
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Right Ascension(RA) |
268.8667 |
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Declination (DEC) |
-29.1706 |
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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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MOA-2011-BLG-291 b
MOA-2011-BLG-291 b
MOA-2011-BLG-291 b is an exoplanet orbiting the star MOA-2011-BLG-291, located about 22830.9 light-years (7000.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star MOA-2011-BLG-291 has apparent magnitude of 22.0, with absolute magnitude of 7.8. It is 0.2 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 MOA-2011-BLG-291 b around its host star MOA-2011-BLG-291)
The Star MOA-2011-BLG-291 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.058 AU ( 8733191.1 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.081 AU ( 12071552.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.123 AU ( 18394374.4 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.181 AU ( 27068127.7 km)
Radiation at Planetary Boundary of MOA-2011-BLG-291 b : 4.54 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star MOA-2011-BLG-291)
Kopparapu Recent Venus for Star MOA-2011-BLG-291 distance : 0.066 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star MOA-2011-BLG-291 distance : 0.084 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star MOA-2011-BLG-291 distance : 0.081 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star MOA-2011-BLG-291 distance : 0.089 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star MOA-2011-BLG-291 distance : 0.164 AU
Kopparapu Outer Boundary for Early Mars for Star MOA-2011-BLG-291 distance : 0.173 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star MOA-2011-BLG-291)
Original Kopparapu Recent Venus for Star MOA-2011-BLG-291 distance : 0.066 AU
Original Kopparapu Runaway Greenhouse for Star MOA-2011-BLG-291 distance : 0.087 AU
Original Kopparapu Moist Greenhouse for Star MOA-2011-BLG-291 distance : 0.087 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star MOA-2011-BLG-291 distance : 0.167 AU
Original Kopparapu Outer Boundary for Early Mars for Star MOA-2011-BLG-291 distance : 0.174 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star MOA-2011-BLG-291)
(Position in Stellar Map of star MOA-2011-BLG-291 and its Exoplanet MOA-2011-BLG-291 b)
(Zoomed position in Stellar Map of star MOA-2011-BLG-291 and its Exoplanet MOA-2011-BLG-291 b (zoom level 3))
(Synthetic Spectrum of star MOA-2011-BLG-291*)
*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
