by Astronomers using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered two exoplanets transiting inactive red dwarf stars TOI-122 and TOI-237.
One of the newfound planets, TOI-122b, is a sub-Neptune planet about 2.7 times the size of Earth.
It orbits TOI-122 (also known as TIC 231702397), an M dwarf that is 33% the radius of our Sun.
The planetary system is located approximately 203 light-years away in the constellation of Tucana.
“TOI-122b likely has a thick atmosphere but on a 5.1-day orbit, it is far interior to the habitable zone of its star and irradiated at over 8x the flux of the Earth,” the astronomers said.
The second new planet, TOI-237b, is a super-Earth with a radius about 1.44 times the Earth’s radius.
It circles TOI-237 (TIC 305048087), an M dwarf that is 21% the radius of our Sun and only 3200 K.
The system lies approximately 124 light-years away in the constellation of Sculptor.
“With its 5.4-day orbit, TOI-237b receives nearly 4x Earth insolation from its host star,” the researchers said.
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One of the newfound planets, TOI-122b, is a sub-Neptune planet about 2.7 times the size of Earth.
It orbits TOI-122 (also known as TIC 231702397), an M dwarf that is 33% the radius of our Sun.
The planetary system is located approximately 203 light-years away in the constellation of Tucana.
“TOI-122b likely has a thick atmosphere but on a 5.1-day orbit, it is far interior to the habitable zone of its star and irradiated at over 8x the flux of the Earth,” the astronomers said.
The second new planet, TOI-237b, is a super-Earth with a radius about 1.44 times the Earth’s radius.
It circles TOI-237 (TIC 305048087), an M dwarf that is 21% the radius of our Sun and only 3200 K.
The system lies approximately 124 light-years away in the constellation of Sculptor.
“With its 5.4-day orbit, TOI-237b receives nearly 4x Earth insolation from its host star,” the researchers said.
Continued...
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