HD 14067 b
Astrophysical Synthesis & Habitability Characterization
HD 14067 b is a confirmed gas giant exoplanet orbiting the star HD 14067, located approximately 463.2 light-years (142.02 parsecs) from the Solar System. First announced in 2014 by Okayama Astrophysical Observatory using the Radial Velocity detection technique (measuring periodic Doppler reflex motion in the host star's spectrum), this world measures 12.2 Earth radii (1.09 Jupiter radii) and has a measured mass of 4862.775 Earth masses (15.3 Jupiter masses). Combining its mass and radius yields a mean bulk density of 14.77 g/cm³ (an iron-enriched, high-compression rocky core), a surface gravity of 32.67 g⊕ (320.38 m/s²), and an escape velocity of 223.3 km/s.
In its orbital architecture around HD 14067, HD 14067 b completes one full revolution every 2744 Earth days (7.51Julian years) at a semi-major axis of 5.15 AU (corresponding to the middle-system regime between Mars at 1.52 AU and Jupiter at 5.20 AU). Its mean orbital velocity is approximately 20.4 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.65, swinging from 1.8025 AU at periapsis out to 8.4975 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 360 K (+87°C / +189°F) and receiving 2.98 S⊕ (~4,057 W/m²), HD 14067 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star HD 14067 is classified as a solar-type yellow star of spectral type G9 III with an effective photospheric temperature of 4,815 K, a radius of 12.4 R☉, a mass of 2.4 M☉, an estimated bolometric luminosity of 74.151 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.69 Gyr and a metallicity of [Fe/H] = -0.1 dex (near-solar heavy-element abundance). From Earth, HD 14067 shines at apparent V-band magnitude 6.533 (accessible to binoculars and small amateur telescopes) 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: Okayama Astrophysical Observatory · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | HD 14067 |
| Spectral Type | G9 III |
| Effective Temp (Teff) | 4,815 K |
| Stellar Radius | 12.4000 R☉ |
| Stellar Mass | 2.4000 M☉ |
| Bolometric Luminosity | 74.151 L☉ |
| Metallicity [Fe/H] | -0.100 dex |
| Stellar Age | 0.690 Gyr |
| Apparent Magnitude | V: 6.533 · G: 6.238 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 5.150000 AU |
| Orbital Period | 2744 days |
| Mean Orbital Velocity | 20.4 km/s |
| Orbital Eccentricity (e) | 0.65000 |
| Orbital Inclination (i) | 39.0000° |
| Mean Bulk Density | 14.77 g/cm³ (223.3 km/s vesc) |
| Insolation Flux | 2.9812 S⊕ (~4,057 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 463.200 LY (142.024 pc) |