TOI-5160 b
Astrophysical Synthesis & Habitability Characterization
TOI-5160 b is a confirmed sub-neptune exoplanet orbiting the star TOI-5160, located approximately 494 light-years (151.47 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 0.0452% across the stellar disk), this world measures 2.397 Earth radii and has a measured mass of 6.33 Earth masses. Combining its mass and radius yields a mean bulk density of 2.53 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-5160, TOI-5160 b completes one full revolution every 4.281 Earth days.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1016 K (+743°C / +1369°F) and receiving 177.54 S⊕ (~241,628 W/m²), TOI-5160 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-5160 is classified as a stellar host with an effective photospheric temperature of 5,622 K, a radius of 1.0332 R☉, a mass of 1.003 M☉, an estimated bolometric luminosity of 0.957 L☉. Stellar evolution modeling indicates a metallicity of [Fe/H] = 0.204 dex (metal-rich relative to the Sun). From Earth, TOI-5160 shines at apparent V-band magnitude 10.847 (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-5160 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,622 K |
| Stellar Radius | 1.0332 R☉ |
| Stellar Mass | 1.0030 M☉ |
| Bolometric Luminosity | 0.957 L☉ |
| Metallicity [Fe/H] | 0.204 dex |
| Stellar Age | — |
| Apparent Magnitude | V: 10.847 · G: 10.644 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 4.281 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 87.8756° |
| Mean Bulk Density | 2.53 g/cm³ (18.2 km/s vesc) |
| Insolation Flux | 177.5370 S⊕ (~241,628 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 494.000 LY (151.465 pc) |