Highly Eccentric Sub-Neptune Found Orbiting Nearby Red Dwarf astronomy space science
Intriguingly, the planet’s orbit is highly elliptical, suggestive of a possible perturbing outer gas-giant planet in the TOI-2257 system.
“In addition, they emit more strongly in the infrared. This leads to favorable conditions for atmospheric characterization by the NASA/ESA Hubble Space Telescope and the NASA/ESA/CSA James Webb Space Telescope.” The alien world was first identified in TESS data, with further confirmation from several ground-based facilities, including three telescopes in the SPECULOOS group that are designed for observations of small planets around ultra-cool red dwarfs.Dubbed TOI-2257b, it has an estimated orbital period of 35.19 days.
“Planets in this so-called habitable zone near a small red dwarf star are easier to study because they have shorter orbital periods and can therefore be observed more often.”
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