Second exoplanet discovered around star TOI 2134

20. 10. 2023 (accepted)

Second exoplanet discovered around star TOI 2134

Star system: TOI 2134 | Distance from the Sun: 73.9 light years

A temperate, highly eccentric sub-Saturn has been discovered orbiting the bright K-dwarf TOI-2134, in addition to an inner mini-Neptune that was discovered three years ago. The outer planet has a radius of 7.27 R⊕ and a mass of 41.86 M⊕, and a high eccentricity of 0.67, positioning it in the habitable zone of its system for part of its orbit. Further observations are needed to fully constrain the orbit of the outer planet and to study the spin-orbit architecture of the system.

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Stars Exoplanets TESS

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A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134 external link

Stars mentioned

TOI 2134

K5V, Orange star

mass: 0.74 M☉

radius: 0.7 R☉

distance: 73.9 ly

stars in the system: 1

exoplanets: 2

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TOI 2134 73.9 ly		Understanding eccentric temperate giants: an in-depth study of the architecture and stellar obliquity of the TOI-2134 system 2. 7. 2026
K2-290 879 ly	+2	Updating the Ephemeris and Physical Properties of Five Long-period Transiting Exoplanets Using TESS and CHEOPS 17. 4. 2025
TOI 2134 73.9 ly		Outflowing helium from a mature mini-Neptune 3. 8. 2023 (accepted)
TOI 4308 355 ly	+8	VaTEST II: Statistical Validation of 16 Exoplanets of TESS 24. 1. 2023 (accepted)

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