TIC 365102760 b
Astrophysical Synthesis & Habitability Characterization
TIC 365102760 b is a confirmed gas giant exoplanet orbiting the star TIC 365102760, located approximately 1811.9 light-years (555.55 parsecs) from the Solar System. First announced in 2024 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.0331% across the stellar disk), this world measures 6.21 Earth radii (0.55 Jupiter radii) and has a measured mass of 19.2 Earth masses. Combining its mass and radius yields a mean bulk density of 0.44 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.5 g⊕ (4.9 m/s²), and an escape velocity of 19.7 km/s.
In its orbital architecture around TIC 365102760, TIC 365102760 b completes one full revolution every 4.213 Earth days at a semi-major axis of 0.0622 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 160.6 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.406, swinging from 0.0369 AU at periapsis out to 0.0875 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1676 K (+1403°C / +2557°F) and receiving 1,316.50 S⊕ (~1,791,750 W/m²), TIC 365102760 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TIC 365102760 is classified as a stellar host with an effective photospheric temperature of 4,900 K, a radius of 3.13 R☉, a mass of 1.17 M☉, an estimated bolometric luminosity of 5.067 L☉. Stellar evolution modeling indicates an estimated stellar age of 6.3 Gyr and a metallicity of [Fe/H] = 0.09 dex (metal-rich relative to the Sun). From Earth, TIC 365102760 shines at apparent V-band magnitude 12.154 (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 | TIC 365102760 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,900 K |
| Stellar Radius | 3.1300 R☉ |
| Stellar Mass | 1.1700 M☉ |
| Bolometric Luminosity | 5.067 L☉ |
| Metallicity [Fe/H] | 0.090 dex |
| Stellar Age | 6.300 Gyr |
| Apparent Magnitude | V: 12.154 · G: 11.977 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.062200 AU |
| Orbital Period | 4.213 days |
| Mean Orbital Velocity | 160.6 km/s |
| Orbital Eccentricity (e) | 0.40600 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.44 g/cm³ (19.7 km/s vesc) |
| Insolation Flux | 1316.4951 S⊕ (~1,791,750 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1811.900 LY (555.546 pc) |