TOI-2411 b
Astrophysical Synthesis & Habitability Characterization
TOI-2411 b is a confirmed super-earth exoplanet orbiting the star TOI-2411, located approximately 194.2 light-years (59.54 parsecs) from the Solar System. First announced in 2022 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.0513% across the stellar disk), this world measures 1.68 Earth radii and has a measured mass of 3.46 Earth masses. Combining its mass and radius yields a mean bulk density of 4.02 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.23 g⊕ (12.06 m/s²), and an escape velocity of 16.1 km/s.
In its orbital architecture around TOI-2411, TOI-2411 b completes one full revolution every 0.783 Earth days at a semi-major axis of 0.0144 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 200.2 km/s (compared to Earth's 29.8 km/s).
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1355 K (+1082°C / +1980°F) and receiving 1,051.14 S⊕ (~1,430,599 W/m²), TOI-2411 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-2411 is classified as a stellar host with an effective photospheric temperature of 4,099 K, a radius of 0.68 R☉, a mass of 0.65 M☉, an estimated bolometric luminosity of 0.117 L☉. From Earth, TOI-2411 shines at apparent V-band magnitude 11.272 (faint and requiring research-grade or CCD telescopic photometry) in the Southern celestial hemisphere.
Methodology: Computed using the Schulze-Makuch et al. (2011) weighted metric comparing physical interior (radius, estimated density) and surface thermal regime (escape velocity, equilibrium temperature).
Discovery Facility: Transiting Exoplanet Survey Satellite (TESS) · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | TOI-2411 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,099 K |
| Stellar Radius | 0.6800 R☉ |
| Stellar Mass | 0.6500 M☉ |
| Bolometric Luminosity | 0.117 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 11.272 · G: 11.220 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.014400 AU |
| Orbital Period | 0.783 days |
| Mean Orbital Velocity | 200.2 km/s |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 4.02 g/cm³ (16.1 km/s vesc) |
| Insolation Flux | 1051.1379 S⊕ (~1,430,599 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 194.200 LY (59.536 pc) |