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Exoplanet Name : |
TOI-2421 b |
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Alternate Name : |
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Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.9250 |
(Rjup) |
10.3683 |
(Rearth) |
|
Mass (Mjup / Me): |
0.3330 |
(Mjup) |
105.8734 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0543 |
(AU) |
0.0543 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0119 |
|
Orbital Period(Observed/Estimated) |
4.35 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.9848 |
|
Star Radiation at Atmospheric Boundary: |
1556909.6 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
1576.6 |
(K) |
|
Blackbody T 0.3(K) |
1480.5 |
(K) |
|
Blackbody T 0.7(K) |
1197.9 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
1874.8 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
1760.7 |
(K) |
|
Size Class: |
Jupiter-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
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Star Name : |
TOI-2421 |
|
Alternate Name : |
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|
Star Distance(LY) : |
1067.5 |
|
Stellar Radius(Rsun) : |
1.9 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.0 |
(Msun Measured) |
1.1 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
5645 |
(K) |
|
Spectral type : |
G5 |
|
UV portion[%]: |
7.4 |
|
Visible portion[%]: |
44.1 |
|
IR portion[%]: |
48.4 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
14.4 |
|
Apparent Magnitude: |
22.0 |
|
Right Ascension(RA) |
33.1542 |
|
Declination (DEC) |
-35.3908 |
|
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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TOI-2421 b
TOI-2421 b
TOI-2421 b is an exoplanet orbiting the star TOI-2421, located about 1067.5 light-years (327.3 pc) away from Solar System. Its discovery was publicly announced on 2022.
The host star TOI-2421 has apparent magnitude of 22.0, with absolute magnitude of 14.4.
In this planetary system, the extrasolar planet TOI-2421 b orbits around the star TOI-2421 every 4.3 days with its orbital distance of 0.05 AU ( 8123164.4 km)
(Projected orbit of TOI-2421 b around its host star TOI-2421)
The Star TOI-2421 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 1.325 AU ( 198283800.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 1.832 AU ( 274080029.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 2.792 AU ( 417637311.3 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 4.108 AU ( 614571599.1 km)
Radiation at Planetary Boundary of TOI-2421 b : 1556909.59 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2421)
Kopparapu Recent Venus for Star TOI-2421 distance : 1.385 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2421 distance : 1.753 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2421 distance : 1.694 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2421 distance : 1.857 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2421 distance : 3.108 AU
Kopparapu Outer Boundary for Early Mars for Star TOI-2421 distance : 3.278 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2421)
Original Kopparapu Recent Venus for Star TOI-2421 distance : 1.383 AU
Original Kopparapu Runaway Greenhouse for Star TOI-2421 distance : 1.803 AU
Original Kopparapu Moist Greenhouse for Star TOI-2421 distance : 1.830 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2421 distance : 3.162 AU
Original Kopparapu Outer Boundary for Early Mars for Star TOI-2421 distance : 3.288 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2421)
(Position in Stellar Map of star TOI-2421 and its Exoplanet TOI-2421 b)
(Zoomed position in Stellar Map of star TOI-2421 and its Exoplanet TOI-2421 b (zoom level 3))
(Synthetic Spectrum of star TOI-2421*)
*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
