TOI-1814 b
Astrophysical Synthesis & Habitability Characterization
TOI-1814 b is a confirmed sub-neptune exoplanet orbiting the star TOI-1814, located approximately 1182.4 light-years (362.52 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 0.0396% across the stellar disk), this world measures 5.185 Earth radii (0.46 Jupiter radii) and has a measured mass of 23.5 Earth masses. Combining its mass and radius yields a mean bulk density of 0.93 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.87 g⊕ (8.53 m/s²), and an escape velocity of 23.8 km/s.
In its orbital architecture around TOI-1814, TOI-1814 b completes one full revolution every 6.369 Earth days.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 978 K (+705°C / +1301°F) and receiving 216.06 S⊕ (~294,060 W/m²), TOI-1814 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-1814 is classified as a stellar host with an effective photospheric temperature of 4,873 K, a radius of 2.3895 R☉, an estimated bolometric luminosity of 2.889 L☉. From Earth, TOI-1814 shines at apparent V-band magnitude 11.182 (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-1814 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,873 K |
| Stellar Radius | 2.3895 R☉ |
| Stellar Mass | — |
| Bolometric Luminosity | 2.889 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 11.182 · G: 11.414 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 6.369 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 87.4551° |
| Mean Bulk Density | 0.93 g/cm³ (23.8 km/s vesc) |
| Insolation Flux | 216.0619 S⊕ (~294,060 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1182.400 LY (362.522 pc) |