TOI-1432 b
Astrophysical Synthesis & Habitability Characterization
TOI-1432 b is a confirmed sub-neptune exoplanet orbiting the star TOI-1432, located approximately 310.4 light-years (95.18 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 0.0576% across the stellar disk), this world measures 2.39 Earth radii and has a measured mass of 6.3 Earth masses. Combining its mass and radius yields a mean bulk density of 2.54 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.1 g⊕ (10.79 m/s²), and an escape velocity of 18.2 km/s.
In its orbital architecture around TOI-1432, TOI-1432 b completes one full revolution every 6.109 Earth days. The orbit is modeled as circular (e = 0.00), maintaining a constant stellar distance throughout its year.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 916 K (+643°C / +1189°F) and receiving 117.10 S⊕ (~159,376 W/m²), TOI-1432 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-1432 is classified as a stellar host with an effective photospheric temperature of 5,587 K, a radius of 0.9133 R☉, a mass of 0.99 M☉, an estimated bolometric luminosity of 0.729 L☉. From Earth, TOI-1432 shines at apparent V-band magnitude 10.061 (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 | TOI-1432 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,587 K |
| Stellar Radius | 0.9133 R☉ |
| Stellar Mass | 0.9900 M☉ |
| Bolometric Luminosity | 0.729 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 10.061 · G: 9.926 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 6.109 days |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 2.54 g/cm³ (18.2 km/s vesc) |
| Insolation Flux | 117.1020 S⊕ (~159,376 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 310.400 LY (95.176 pc) |