TOI-150.01
Astrophysical Synthesis & Habitability Characterization
TOI-150.01 is a confirmed gas giant exoplanet orbiting the star TOI-150, located approximately 1096.8 light-years (336.27 parsecs) from the Solar System. First announced in 2019 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.7142% across the stellar disk), this world measures 14.067 Earth radii (1.25 Jupiter radii) and has a measured mass of 797.753 Earth masses (2.51 Jupiter masses). Combining its mass and radius yields a mean bulk density of 1.58 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 4.03 g⊕ (39.52 m/s²), and an escape velocity of 84.2 km/s.
In its orbital architecture around TOI-150, TOI-150.01 completes one full revolution every 5.857 Earth days at a semi-major axis of 0.07037 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 130.7 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.262, swinging from 0.0519 AU at periapsis out to 0.0888 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1405 K (+1132°C / +2070°F) and receiving 750.92 S⊕ (~1,022,005 W/m²), TOI-150.01 orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-150 is classified as a warm F-type star of spectral type F with an effective photospheric temperature of 6,255 K, a radius of 1.526 R☉, a mass of 1.351 M☉, an estimated bolometric luminosity of 3.198 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.346 Gyr and a metallicity of [Fe/H] = 0.28 dex (metal-rich relative to the Sun). From Earth, TOI-150 shines at apparent V-band magnitude 11.39 (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-150 |
| Spectral Type | F |
| Effective Temp (Teff) | 6,255 K |
| Stellar Radius | 1.5260 R☉ |
| Stellar Mass | 1.3510 M☉ |
| Bolometric Luminosity | 3.198 L☉ |
| Metallicity [Fe/H] | 0.280 dex |
| Stellar Age | 2.346 Gyr |
| Apparent Magnitude | V: 11.390 · G: 11.341 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.070370 AU |
| Orbital Period | 5.857 days |
| Mean Orbital Velocity | 130.7 km/s |
| Orbital Eccentricity (e) | 0.26200 |
| Orbital Inclination (i) | 88.0900° |
| Mean Bulk Density | 1.58 g/cm³ (84.2 km/s vesc) |
| Insolation Flux | 750.9220 S⊕ (~1,022,005 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1096.800 LY (336.267 pc) |