TOI-6662 b
Astrophysical Synthesis & Habitability Characterization
TOI-6662 b is a confirmed terrestrial exoplanet orbiting the star TOI-6662, located approximately 69.1 light-years (21.18 parsecs) from the Solar System. First announced in 2026 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.0674% across the stellar disk), this world measures 0.94 Earth radii and has a measured mass of 0.779 Earth masses. Combining its mass and radius yields a mean bulk density of 5.17 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 0.88 g⊕ (8.63 m/s²), and an escape velocity of 10.2 km/s.
In its orbital architecture around TOI-6662, TOI-6662 b completes one full revolution every 0.294 Earth days. The orbit is modeled as circular (e = 0.00), maintaining a constant stellar distance throughout its year.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1114 K (+841°C / +1546°F) and receiving 363.44 S⊕ (~494,637 W/m²), TOI-6662 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-6662 is classified as a stellar host with an effective photospheric temperature of 3,359 K, a radius of 0.3319 R☉, a mass of 0.3133 M☉, an estimated bolometric luminosity of 0.013 L☉. From Earth, TOI-6662 shines at apparent V-band magnitude 13.349 (faint and requiring research-grade or CCD telescopic photometry) in the Northern 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-6662 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 3,359 K |
| Stellar Radius | 0.3319 R☉ |
| Stellar Mass | 0.3133 M☉ |
| Bolometric Luminosity | 0.013 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 13.349 · G: 12.129 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 0.294 days |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 5.17 g/cm³ (10.2 km/s vesc) |
| Insolation Flux | 363.4367 S⊕ (~494,637 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 69.100 LY (21.182 pc) |