TOI-2114 b
Astrophysical Synthesis & Habitability Characterization
TOI-2114 b is a confirmed gas giant exoplanet orbiting the star TOI-2114, located approximately 1036.7 light-years (317.85 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 0.4584% across the stellar disk), this world measures 14.549 Earth radii (1.3 Jupiter radii) and has a measured mass of 324.185 Earth masses (1.02 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.58 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.53 g⊕ (15 m/s²), and an escape velocity of 52.8 km/s.
In its orbital architecture around TOI-2114, TOI-2114 b completes one full revolution every 6.21 Earth days at a semi-major axis of 0.076 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 133.1 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.472, swinging from 0.0401 AU at periapsis out to 0.1119 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1472 K (+1199°C / +2190°F) and receiving 1,130.00 S⊕ (~1,537,930 W/m²), TOI-2114 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-2114 is classified as a warm F-type star of spectral type F5 IV with an effective photospheric temperature of 6,400 K, a radius of 1.97 R☉, a mass of 1.309 M☉, an estimated bolometric luminosity of 5.842 L☉. Stellar evolution modeling indicates an estimated stellar age of 2 Gyr and a metallicity of [Fe/H] = 0.001 dex (near-solar heavy-element abundance). From Earth, TOI-2114 shines at apparent V-band magnitude 10.265 (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-2114 |
| Spectral Type | F5 IV |
| Effective Temp (Teff) | 6,400 K |
| Stellar Radius | 1.9700 R☉ |
| Stellar Mass | 1.3090 M☉ |
| Bolometric Luminosity | 5.842 L☉ |
| Metallicity [Fe/H] | 0.001 dex |
| Stellar Age | 2.000 Gyr |
| Apparent Magnitude | V: 10.265 · G: 10.174 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.076000 AU |
| Orbital Period | 6.21 days |
| Mean Orbital Velocity | 133.1 km/s |
| Orbital Eccentricity (e) | 0.47200 |
| Orbital Inclination (i) | 84.3900° |
| Mean Bulk Density | 0.58 g/cm³ (52.8 km/s vesc) |
| Insolation Flux | 1130.0000 S⊕ (~1,537,930 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1036.700 LY (317.845 pc) |