TOI-6692 b
Astrophysical Synthesis & Habitability Characterization
TOI-6692 b is a confirmed gas giant exoplanet orbiting the star TOI-6692, located approximately 1020.6 light-years (312.9 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 0.5978% across the stellar disk), this world measures 11.68 Earth radii (1.04 Jupiter radii) and has a measured mass of 197.054 Earth masses (0.62 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.68 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.44 g⊕ (14.12 m/s²), and an escape velocity of 45.9 km/s.
In its orbital architecture around TOI-6692, TOI-6692 b completes one full revolution every 131.125 Earth days at a semi-major axis of 0.512 AU (situated at an orbital separation between Mercury's 0.39 AU and Venus's 0.72 AU). Its mean orbital velocity is approximately 42.5 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.537, swinging from 0.2371 AU at periapsis out to 0.7869 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 467 K (+194°C / +381°F) and receiving 182.35 S⊕ (~248,183 W/m²), TOI-6692 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-6692 is classified as a stellar host with an effective photospheric temperature of 5,890 K, a radius of 1.385 R☉, a mass of 1.047 M☉, an estimated bolometric luminosity of 2.071 L☉. Stellar evolution modeling indicates an estimated stellar age of 7.8 Gyr and a metallicity of [Fe/H] = -0.008 dex (near-solar heavy-element abundance). From Earth, TOI-6692 shines at apparent V-band magnitude 11.434 (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-6692 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,890 K |
| Stellar Radius | 1.3850 R☉ |
| Stellar Mass | 1.0470 M☉ |
| Bolometric Luminosity | 2.071 L☉ |
| Metallicity [Fe/H] | -0.008 dex |
| Stellar Age | 7.800 Gyr |
| Apparent Magnitude | V: 11.434 · G: 11.583 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.512000 AU |
| Orbital Period | 131.125 days |
| Mean Orbital Velocity | 42.5 km/s |
| Orbital Eccentricity (e) | 0.53700 |
| Orbital Inclination (i) | 89.4830° |
| Mean Bulk Density | 0.68 g/cm³ (45.9 km/s vesc) |
| Insolation Flux | 182.3533 S⊕ (~248,183 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1020.600 LY (312.903 pc) |