|
Exoplanet Name : |
2MASS J1554-3154 b |
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Alternate Name : |
2MASS J15545141-3154463 b |
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Status : |
Confirmed |
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Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
33.8000 |
(Mjup) |
10746.3044 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
883.0000 |
(AU) |
883.0000 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
30580.9560 |
|
Orbital Period(Observed/Estimated) |
11170000.00 |
(Days Obs.) |
11454661.51 |
(Days Est.) |
|
Surface Gravity (G Earth) |
103.7806 |
|
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
7.7 |
(K) |
|
Blackbody T 0.3(K) |
7.3 |
(K) |
|
Blackbody T 0.7(K) |
5.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
9.2 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
8.6 |
(K) |
|
Size Class: |
Jupiter-size |
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Mass Class: |
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|
Detection Type : |
"Imaging, Primary Transit" |
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Mass Detection : |
Astrometry |
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Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
2MASS J1554-3154 |
|
Alternate Name : |
"2MASS J15545141-3154463, WRAY 15-1380" |
|
Star Distance(LY) : |
464.7 |
|
Stellar Radius(Rsun) : |
1.3 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.7 |
(Msun Measured) |
0.7 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4318 |
(K) |
|
Spectral type : |
K5IVe |
|
UV portion[%]: |
0.9 |
|
Visible portion[%]: |
27.8 |
|
IR portion[%]: |
71.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
6.3 |
|
Apparent Magnitude: |
12.1 |
|
Right Ascension(RA) |
238.7142 |
|
Declination (DEC) |
-31.9129 |
|
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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2MASS J1554-3154 b
2MASS J1554-3154 b
2MASS J1554-3154 b is an exoplanet orbiting the star 2MASS J1554-3154, located about 464.7 light-years (142.5 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star 2MASS J1554-3154 has apparent magnitude of 12.1, with absolute magnitude of 6.3. It is 0.7 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 4318 with its spectral types of K5IVe
In this planetary system, the extrasolar planet 2MASS J1554-3154 b orbits around the star 2MASS J1554-3154 every 11170000.0 days with its orbital distance of 883.00 AU ( 132094919828.1 km)
(Projected orbit of 2MASS J1554-3154 b around its host star 2MASS J1554-3154)
The Star 2MASS J1554-3154 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.518 AU ( 77526476.3 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.716 AU ( 107161850.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 1.092 AU ( 163290945.0 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.606 AU ( 240289778.8 km)
Radiation at Planetary Boundary of 2MASS J1554-3154 b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J1554-3154)
Kopparapu Recent Venus for Star 2MASS J1554-3154 distance : 0.576 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J1554-3154 distance : 0.729 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J1554-3154 distance : 0.704 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J1554-3154 distance : 0.773 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J1554-3154 distance : 1.362 AU
Kopparapu Outer Boundary for Early Mars for Star 2MASS J1554-3154 distance : 1.436 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J1554-3154)
Original Kopparapu Recent Venus for Star 2MASS J1554-3154 distance : 0.568 AU
Original Kopparapu Runaway Greenhouse for Star 2MASS J1554-3154 distance : 0.753 AU
Original Kopparapu Moist Greenhouse for Star 2MASS J1554-3154 distance : 0.752 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J1554-3154 distance : 1.384 AU
Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J1554-3154 distance : 1.439 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J1554-3154)
(Position in Stellar Map of star 2MASS J1554-3154 and its Exoplanet 2MASS J1554-3154 b)
(Zoomed position in Stellar Map of star 2MASS J1554-3154 and its Exoplanet 2MASS J1554-3154 b (zoom level 3))
(Synthetic Spectrum of star 2MASS J1554-3154*)
*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
