Second sub-Neptune exoplanet discovered around orange dwarf star TOI 238

6. 2. 2024 (accepted)

Second sub-Neptune exoplanet discovered around orange dwarf star TOI 238

Star system: TOI 238 | Distance from the Sun: 261 light years

The first planet TOI 238 b is a super-Earth with 1.4 Earth radii and was discovered just last year. Newly discovered TOI 238 c with 2.2 radii could be a water-rich world.

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Stars Exoplanets

Scientific study

TESS and ESPRESSO discover a super-Earth and a mini-Neptune orbiting the K-dwarf TOI-238 external link

Stars mentioned

TOI 238

Orange star

mass: 0.79 M☉

radius: 0.7 R☉

distance: 261 ly

stars in the system: 1

exoplanets: 2

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K2-135 96.7 ly	+1	Escape of Water- and Metal-enriched Atmospheres from compact Hot mini-Neptunes with CHAIN 3. 6. 2026
TOI 238 261 ly	+1	Searching for Hot Water World Candidates with CHEOPS: Refining the radii and analysing the internal structures and atmospheric lifetimes of TOI-238 b and TOI-1685 b 13. 2. 2025
TOI 238 261 ly	+7	VaTEST III: Validation of 8 Potential Super-Earths from TESS Data 1. 11. 2023 (accepted)

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