TIC 241249530 b
Astrophysical Synthesis & Habitability Characterization
TIC 241249530 b is a confirmed gas giant exoplanet orbiting the star TIC 241249530, located approximately 1058.2 light-years (324.45 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 0.7611% across the stellar disk), this world measures 13.294 Earth radii (1.19 Jupiter radii) and has a measured mass of 1582.785 Earth masses (4.98 Jupiter masses). Combining its mass and radius yields a mean bulk density of 3.71 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 8.96 g⊕ (87.87 m/s²), and an escape velocity of 122.1 km/s.
In its orbital architecture around TIC 241249530, TIC 241249530 b completes one full revolution every 165.772 Earth days at a semi-major axis of 0.641 AU (situated at an orbital separation between Mercury's 0.39 AU and Venus's 0.72 AU). Its mean orbital velocity is approximately 42.1 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.9412, swinging from 0.0377 AU at periapsis out to 1.2443 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 439 K (+166°C / +331°F) and receiving 6.23 S⊕ (~8,480 W/m²), TIC 241249530 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TIC 241249530 is classified as a stellar host with an effective photospheric temperature of 6,166 K, a radius of 1.397 R☉, a mass of 1.271 M☉, an estimated bolometric luminosity of 2.531 L☉. Stellar evolution modeling indicates an estimated stellar age of 3.2 Gyr and a metallicity of [Fe/H] = 0.09 dex (metal-rich relative to the Sun). From Earth, TIC 241249530 shines at apparent V-band magnitude 11.908 (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 241249530 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,166 K |
| Stellar Radius | 1.3970 R☉ |
| Stellar Mass | 1.2710 M☉ |
| Bolometric Luminosity | 2.531 L☉ |
| Metallicity [Fe/H] | 0.090 dex |
| Stellar Age | 3.200 Gyr |
| Apparent Magnitude | V: 11.908 · G: 11.565 |
| System Architecture | 2 Stars, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.641000 AU |
| Orbital Period | 165.772 days |
| Mean Orbital Velocity | 42.1 km/s |
| Orbital Eccentricity (e) | 0.94120 |
| Orbital Inclination (i) | 85.1700° |
| Mean Bulk Density | 3.71 g/cm³ (122.1 km/s vesc) |
| Insolation Flux | 6.2305 S⊕ (~8,480 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1058.200 LY (324.448 pc) |