|
Exoplanet Name : |
2MASS J0021-4514 b |
|
Alternate Name : |
"CWISE J002159.02-451434.4, 2MASS J00215427-4514590 b" |
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
|
Mass (Mjup / Me): |
30.0000 |
(Mjup) |
9538.1400 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
3900.0000 |
(AU) |
3900.0000 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
520067.8968 |
|
Orbital Period(Observed/Estimated) |
189960000.00 |
(Days Obs.) |
204623841.24 |
(Days Est.) |
|
Surface Gravity (G Earth) |
92.1130 |
|
Star Radiation at Atmospheric Boundary: |
0.0 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1.1 |
(K) |
|
Blackbody T 0.3(K) |
1.1 |
(K) |
|
Blackbody T 0.7(K) |
0.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1.3 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Imaging |
|
Mass Detection : |
|
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Radius Detection : |
|
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Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
2MASS J0021-4514 |
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Alternate Name : |
"WISEA J002154.47-451500.2, TIC 7151346, 2MASS J00215427-4514590, LEHPM 503" |
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Star Distance(LY) : |
177.8 |
|
Stellar Radius(Rsun) : |
0.2 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.2 |
(Msun Measured) |
0.2 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
3182 |
(K) |
|
Spectral type : |
M5.5V |
|
UV portion[%]: |
0.3 |
|
Visible portion[%]: |
7.5 |
|
IR portion[%]: |
92.2 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
5.3 |
|
Apparent Magnitude: |
9.0 |
|
Right Ascension(RA) |
5.4761 |
|
Declination (DEC) |
-45.2498 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
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Discovered by |
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|
Discovery Paper - Authors |
|
|
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 J0021-4514 b
2MASS J0021-4514 b
2MASS J0021-4514 b is an exoplanet orbiting the star 2MASS J0021-4514, located about 177.8 light-years (54.5 pc) away from Solar System. Its discovery was publicly announced on 2024.
The host star 2MASS J0021-4514 has apparent magnitude of 9.0, with absolute magnitude of 5.3. It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3182 with its spectral types of M5.5V
In this planetary system, the extrasolar planet 2MASS J0021-4514 b orbits around the star 2MASS J0021-4514 every 189960000.0 days with its orbital distance of 3900.00 AU ( 583431695730.0 km)
(Projected orbit of 2MASS J0021-4514 b around its host star 2MASS J0021-4514)
The Star 2MASS J0021-4514 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.048 AU ( 7212505.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.067 AU ( 9969567.3 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.102 AU ( 15191414.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.149 AU ( 22354831.7 km)
Radiation at Planetary Boundary of 2MASS J0021-4514 b : 0.00 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J0021-4514)
Kopparapu Recent Venus for Star 2MASS J0021-4514 distance : 0.055 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J0021-4514 distance : 0.069 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J0021-4514 distance : 0.067 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J0021-4514 distance : 0.074 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J0021-4514 distance : 0.137 AU
Kopparapu Outer Boundary for Early Mars for Star 2MASS J0021-4514 distance : 0.144 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J0021-4514)
Original Kopparapu Recent Venus for Star 2MASS J0021-4514 distance : 0.054 AU
Original Kopparapu Runaway Greenhouse for Star 2MASS J0021-4514 distance : 0.072 AU
Original Kopparapu Moist Greenhouse for Star 2MASS J0021-4514 distance : 0.072 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J0021-4514 distance : 0.139 AU
Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J0021-4514 distance : 0.144 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J0021-4514)
(Position in Stellar Map of star 2MASS J0021-4514 and its Exoplanet 2MASS J0021-4514 b)
(Zoomed position in Stellar Map of star 2MASS J0021-4514 and its Exoplanet 2MASS J0021-4514 b (zoom level 3))
(Synthetic Spectrum of star 2MASS J0021-4514*)
*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
