TOI-2211.01

Astrophysical Synthesis & Habitability Characterization

TOI-2211.01 is a confirmed super-earth exoplanet orbiting the star TOI-2211, located approximately 229.3 light-years (70.29 parsecs) from the Solar System. First announced in 2024 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.0294% across the stellar disk), this world measures 1.561 Earth radii and has a measured mass of 3.06 Earth masses. Combining its mass and radius yields a mean bulk density of 4.44 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.26 g⊕ (12.36 m/s²), and an escape velocity of 15.7 km/s.

In its orbital architecture around TOI-2211, TOI-2211.01 completes one full revolution every 3.093 Earth days at a semi-major axis of 0.04011 AU (an ultra-close orbit less than one-seventh of Mercury's 0.387 AU distance from the Sun, where strong stellar tidal forces typically induce synchronous rotation). Its mean orbital velocity is approximately 141.1 km/s (compared to Earth's 29.8 km/s).

⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1057 K (+784°C / +1443°F) and receiving 296.13 S⊕ (~403,033 W/m²), TOI-2211.01 orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.

The host star TOI-2211 is classified as a stellar host with an effective photospheric temperature of 5,253 K, a radius of 0.834 R☉, a mass of 0.9 M☉, an estimated bolometric luminosity of 0.475 L☉. From Earth, TOI-2211 shines at apparent V-band magnitude 10 (accessible to binoculars and small amateur telescopes) in the Southern celestial hemisphere.

Discovery Facility: Transiting Exoplanet Survey Satellite (TESS) · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).