TOI-883 b
Astrophysical Synthesis & Habitability Characterization
TOI-883 b is a confirmed gas giant exoplanet orbiting the star TOI-883, located approximately 334.8 light-years (102.64 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 0.4198% across the stellar disk), this world measures 7.172 Earth radii (0.64 Jupiter radii) and has a measured mass of 40.7 Earth masses (0.13 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.61 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.79 g⊕ (7.75 m/s²), and an escape velocity of 26.6 km/s.
In its orbital architecture around TOI-883, TOI-883 b completes one full revolution every 10.058 Earth days.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 861 K (+588°C / +1090°F) and receiving 91.55 S⊕ (~124,598 W/m²), TOI-883 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-883 is classified as a stellar host with an effective photospheric temperature of 5,713 K, a radius of 1.0148 R☉, a mass of 1.003 M☉, an estimated bolometric luminosity of 0.984 L☉. From Earth, TOI-883 shines at apparent V-band magnitude 9.957 (accessible to binoculars and small amateur telescopes) 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-883 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,713 K |
| Stellar Radius | 1.0148 R☉ |
| Stellar Mass | 1.0030 M☉ |
| Bolometric Luminosity | 0.984 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 9.957 · G: 9.828 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 10.058 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 88.7394° |
| Mean Bulk Density | 0.61 g/cm³ (26.6 km/s vesc) |
| Insolation Flux | 91.5488 S⊕ (~124,598 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 334.800 LY (102.637 pc) |