Astronomers have confirmed a new exoplanet, TOI-1080 b, using data from the Transiting Exoplanet Survey Satellite (TESS) and follow-up ground-based observations.

The planet orbits an inactive M4V-type red dwarf, TOI-1080, every 3.97 days at a distance of 0.027 AU, making it slightly larger than Earth with a radius about 1.2 times Earth’s and a likely mass near 1.75 Earth masses.

Its estimated equilibrium temperature of 368 K places it in a relatively warm but temperate range, suggesting a rocky super-Earth that could host a carbon-dioxide or oxygen-rich atmosphere.

TOI-1080, a small red dwarf about 0.16 solar masses and 3,065 K, is 5–7 billion years old, and the system shows no evidence of additional planets larger than 0.9 Earth radii in close orbits or larger than 1.4 Earth radii up to 19-day periods, Interesting Engineering has reported.

The discovery adds to TESS’s catalog of nearly 7,900 candidate exoplanets, with 759 already confirmed.