TOI-2184 b
Astrophysical Synthesis & Habitability Characterization
TOI-2184 b is a confirmed gas giant exoplanet orbiting the star TOI-2184, located approximately 2571.1 light-years (788.32 parsecs) from the Solar System. First announced in 2022 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.1299% across the stellar disk), this world measures 11.4 Earth radii (1.02 Jupiter radii) and has a measured mass of 206.588 Earth masses (0.65 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.77 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.59 g⊕ (15.59 m/s²), and an escape velocity of 47.6 km/s.
In its orbital architecture around TOI-2184, TOI-2184 b completes one full revolution every 6.907 Earth days. Its moderate orbital eccentricity of e = 0.08 driving measurable seasonal insolation cycles.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1676 K (+1403°C / +2557°F) and receiving 1,429.00 S⊕ (~1,944,869 W/m²), TOI-2184 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-2184 is classified as a stellar host with an effective photospheric temperature of 5,966 K, a radius of 2.9 R☉, a mass of 1.53 M☉, an estimated bolometric luminosity of 9.559 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.3 Gyr and a metallicity of [Fe/H] = 0.14 dex (metal-rich relative to the Sun). From Earth, TOI-2184 shines at apparent V-band magnitude 12.254 (faint and requiring research-grade or CCD telescopic photometry) 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-2184 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,966 K |
| Stellar Radius | 2.9000 R☉ |
| Stellar Mass | 1.5300 M☉ |
| Bolometric Luminosity | 9.559 L☉ |
| Metallicity [Fe/H] | 0.140 dex |
| Stellar Age | 2.300 Gyr |
| Apparent Magnitude | V: 12.254 · G: 11.848 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 6.907 days |
| Orbital Eccentricity (e) | 0.08000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.77 g/cm³ (47.6 km/s vesc) |
| Insolation Flux | 1429.0000 S⊕ (~1,944,869 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2571.100 LY (788.317 pc) |