TOI-2992 b
Astrophysical Synthesis & Habitability Characterization
TOI-2992 b is a confirmed gas giant exoplanet orbiting the star TOI-2992, located approximately 1767.9 light-years (542.03 parsecs) from the Solar System. First announced in 2025 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.666% across the stellar disk), this world measures 13.753 Earth radii (1.23 Jupiter radii) and has a measured mass of 1058.369 Earth masses (3.33 Jupiter masses). Combining its mass and radius yields a mean bulk density of 2.24 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 5.6 g⊕ (54.92 m/s²), and an escape velocity of 98.1 km/s.
In its orbital architecture around TOI-2992, TOI-2992 b completes one full revolution every 3.008 Earth days at a semi-major axis of 0.0434 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 157 km/s (compared to Earth's 29.8 km/s). Its moderate orbital eccentricity of e = 0.089 carries the world between 0.0395 AU at periapsis and 0.0473 AU at apoapsis, driving measurable seasonal insolation cycles.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1726 K (+1453°C / +2647°F) and receiving 1,484.00 S⊕ (~2,019,724 W/m²), TOI-2992 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-2992 is classified as a stellar host with an effective photospheric temperature of 6,000 K, a radius of 1.545 R☉, a mass of 1.21 M☉, an estimated bolometric luminosity of 2.776 L☉. Stellar evolution modeling indicates an estimated stellar age of 4.6 Gyr and a metallicity of [Fe/H] = 0.084 dex (metal-rich relative to the Sun). From Earth, TOI-2992 shines at apparent V-band magnitude 12.603 (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-2992 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,000 K |
| Stellar Radius | 1.5450 R☉ |
| Stellar Mass | 1.2100 M☉ |
| Bolometric Luminosity | 2.776 L☉ |
| Metallicity [Fe/H] | 0.084 dex |
| Stellar Age | 4.600 Gyr |
| Apparent Magnitude | V: 12.603 · G: 12.390 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.043400 AU |
| Orbital Period | 3.008 days |
| Mean Orbital Velocity | 157 km/s |
| Orbital Eccentricity (e) | 0.08900 |
| Orbital Inclination (i) | 86.1000° |
| Mean Bulk Density | 2.24 g/cm³ (98.1 km/s vesc) |
| Insolation Flux | 1484.0000 S⊕ (~2,019,724 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1767.900 LY (542.026 pc) |