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Exoplanet Name : |
MAXI J1957+032 b |
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Alternate Name : |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.5000 |
(Rjup) |
5.6045 |
(Rearth) |
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Mass (Mjup / Me): |
17.0000 |
(Mjup) |
5404.9460 |
(Mearth) |
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Semi Major Axis / Orbital Distance Calculated |
0.0027 |
(AU) |
0.0027 |
(AU Est.) |
|
Eccentricity : |
0.0140 |
|
Orbital Period(Yrs) |
0.0001 |
|
Orbital Period(Observed/Estimated) |
0.04 |
(Days Obs.) |
0.04 |
(Days Est.) |
|
Surface Gravity (G Earth) |
172.0749 |
|
Star Radiation at Atmospheric Boundary: |
246047566.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
5589.8 |
(K) |
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Blackbody T 0.3(K) |
5249.4 |
(K) |
|
Blackbody T 0.7(K) |
4247.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
6647.4 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
6242.6 |
(K) |
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Size Class: |
sub-Jupiter-size |
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Mass Class: |
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Detection Type : |
Timing |
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Mass Detection : |
Timing |
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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 : |
MAXI J1957+032 |
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Alternate Name : |
"IGR J19566+0326, ZTF19acerbwo" |
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Star Distance(LY) : |
16307.8 |
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Stellar Radius(Rsun) : |
1.3 |
(Rsun Estimated) |
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Stellar Mass(Msun) : |
1.4 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5500 |
(K) |
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Spectral type : |
PSR |
|
UV portion[%]: |
6.9 |
|
Visible portion[%]: |
43.2 |
|
IR portion[%]: |
49.9 |
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Metalicity : |
0.0 |
|
Absolute Magnitude: |
8.5 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
299.1625 |
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Declination (DEC) |
3.4453 |
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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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MAXI J1957+032 b
MAXI J1957+032 b
MAXI J1957+032 b is an exoplanet orbiting the star MAXI J1957+032, located about 16307.8 light-years (5000.0 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star MAXI J1957+032 has apparent magnitude of 22.0, with absolute magnitude of 8.5. It is 1.4 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of PSR
In this planetary system, the extrasolar planet MAXI J1957+032 b orbits around the star MAXI J1957+032 every 0.0 days with its orbital distance of 0.00 AU ( 399426.3 km)
(Projected orbit of MAXI J1957+032 b around its host star MAXI J1957+032)
The Star MAXI J1957+032 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.819 AU ( 122567832.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.133 AU ( 169420775.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.726 AU ( 258159768.8 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 2.539 AU ( 379893409.0 km)
Radiation at Planetary Boundary of MAXI J1957+032 b : 246047566.92 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star MAXI J1957+032)
Kopparapu Recent Venus for Star MAXI J1957+032 distance : 0.863 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star MAXI J1957+032 distance : 1.093 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star MAXI J1957+032 distance : 1.056 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star MAXI J1957+032 distance : 1.158 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star MAXI J1957+032 distance : 1.946 AU
Kopparapu Outer Boundary for Early Mars for Star MAXI J1957+032 distance : 2.052 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star MAXI J1957+032)
Original Kopparapu Recent Venus for Star MAXI J1957+032 distance : 0.860 AU
Original Kopparapu Runaway Greenhouse for Star MAXI J1957+032 distance : 1.124 AU
Original Kopparapu Moist Greenhouse for Star MAXI J1957+032 distance : 1.138 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star MAXI J1957+032 distance : 1.980 AU
Original Kopparapu Outer Boundary for Early Mars for Star MAXI J1957+032 distance : 2.059 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star MAXI J1957+032)
(Position in Stellar Map of star MAXI J1957+032 and its Exoplanet MAXI J1957+032 b)
(Zoomed position in Stellar Map of star MAXI J1957+032 and its Exoplanet MAXI J1957+032 b (zoom level 3))
(Synthetic Spectrum of star MAXI J1957+032*)
*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
