TOI-907.01
Astrophysical Synthesis & Habitability Characterization
TOI-907.01 is a confirmed gas giant exoplanet orbiting the star TOI-907, located approximately 1019.3 light-years (312.53 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 0.1832% across the stellar disk), this world measures 9.616 Earth radii (0.86 Jupiter radii) and has a measured mass of 67 Earth masses (0.21 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.42 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.72 g⊕ (7.06 m/s²), and an escape velocity of 29.5 km/s.
In its orbital architecture around TOI-907, TOI-907.01 completes one full revolution every 4.585 Earth days at a semi-major axis of 0.055225 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 131 km/s (compared to Earth's 29.8 km/s).
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1847 K (+1574°C / +2865°F) and receiving 1,729.67 S⊕ (~2,354,083 W/m²), TOI-907.01 orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-907 is classified as a stellar host with an effective photospheric temperature of 6,272 K, a radius of 2.0598 R☉, a mass of 1.0694 M☉, an estimated bolometric luminosity of 5.891 L☉. From Earth, TOI-907 shines at apparent V-band magnitude 10.394 (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-907 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,272 K |
| Stellar Radius | 2.0598 R☉ |
| Stellar Mass | 1.0694 M☉ |
| Bolometric Luminosity | 5.891 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 10.394 · G: 10.327 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.055225 AU |
| Orbital Period | 4.585 days |
| Mean Orbital Velocity | 131 km/s |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.42 g/cm³ (29.5 km/s vesc) |
| Insolation Flux | 1729.6714 S⊕ (~2,354,083 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1019.300 LY (312.529 pc) |