HD 114082 b
Astrophysical Synthesis & Habitability Characterization
HD 114082 b is a confirmed gas giant exoplanet orbiting the star HD 114082, located approximately 311.1 light-years (95.39 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 0.5261% across the stellar disk), this world measures 11.725 Earth radii (1.05 Jupiter radii) and has a measured mass of 508.525 Earth masses (1.6 Jupiter masses). Combining its mass and radius yields a mean bulk density of 1.74 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 3.7 g⊕ (36.28 m/s²), and an escape velocity of 73.7 km/s.
In its orbital architecture around HD 114082, HD 114082 b completes one full revolution every 225.55 Earth days at a semi-major axis of 0.791 AU (comparable to the inner terrestrial zone between Venus, Earth at 1.00 AU, and Mars at 1.52 AU). Its mean orbital velocity is approximately 38.2 km/s (compared to Earth's 29.8 km/s). 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 950 K (+677°C / +1251°F) and receiving 192.23 S⊕ (~261,624 W/m²), HD 114082 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star HD 114082 is classified as a warm F-type star of spectral type F3 V with an effective photospheric temperature of 6,610 K, a radius of 1.482 R☉, a mass of 1.28 M☉, an estimated bolometric luminosity of 3.762 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.015 Gyr and a metallicity of [Fe/H] = 0 dex (near-solar heavy-element abundance). From Earth, HD 114082 shines at apparent V-band magnitude 8.2 (accessible to binoculars and small amateur telescopes) 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 | HD 114082 |
| Spectral Type | F3 V |
| Effective Temp (Teff) | 6,610 K |
| Stellar Radius | 1.4820 R☉ |
| Stellar Mass | 1.2800 M☉ |
| Bolometric Luminosity | 3.762 L☉ |
| Metallicity [Fe/H] | 0.000 dex |
| Stellar Age | 0.015 Gyr |
| Apparent Magnitude | V: 8.200 · G: 8.094 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.791000 AU |
| Orbital Period | 225.55 days |
| Mean Orbital Velocity | 38.2 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.7910° |
| Mean Bulk Density | 1.74 g/cm³ (73.7 km/s vesc) |
| Insolation Flux | 192.2293 S⊕ (~261,624 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 311.100 LY (95.391 pc) |