TIC 245076932 b
Astrophysical Synthesis & Habitability Characterization
TIC 245076932 b is a confirmed gas giant exoplanet orbiting the star TIC 245076932, located approximately 991.4 light-years (303.96 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 0.599% across the stellar disk), this world measures 10.873 Earth radii (0.97 Jupiter radii) and has a measured mass of 162.092 Earth masses (0.51 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.7 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.37 g⊕ (13.44 m/s²), and an escape velocity of 43.2 km/s.
In its orbital architecture around TIC 245076932, TIC 245076932 b completes one full revolution every 21.614 Earth days at a semi-major axis of 0.157 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 79 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.428, swinging from 0.0898 AU at periapsis out to 0.2242 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 845 K (+572°C / +1062°F) and receiving 85.60 S⊕ (~116,504 W/m²), TIC 245076932 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TIC 245076932 is classified as a stellar host with an effective photospheric temperature of 6,130 K, a radius of 1.288 R☉, a mass of 1.117 M☉, an estimated bolometric luminosity of 2.102 L☉. Stellar evolution modeling indicates an estimated stellar age of 4.5 Gyr and a metallicity of [Fe/H] = 0.02 dex (near-solar heavy-element abundance). From Earth, TIC 245076932 shines at apparent V-band magnitude 11.727 (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 | TIC 245076932 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,130 K |
| Stellar Radius | 1.2880 R☉ |
| Stellar Mass | 1.1170 M☉ |
| Bolometric Luminosity | 2.102 L☉ |
| Metallicity [Fe/H] | 0.020 dex |
| Stellar Age | 4.500 Gyr |
| Apparent Magnitude | V: 11.727 · G: 11.465 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.157000 AU |
| Orbital Period | 21.614 days |
| Mean Orbital Velocity | 79 km/s |
| Orbital Eccentricity (e) | 0.42800 |
| Orbital Inclination (i) | 89.7700° |
| Mean Bulk Density | 0.7 g/cm³ (43.2 km/s vesc) |
| Insolation Flux | 85.6018 S⊕ (~116,504 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 991.400 LY (303.960 pc) |