TOI-6034 b
Astrophysical Synthesis & Habitability Characterization
TOI-6034 b is a confirmed gas giant exoplanet orbiting the star TOI-6034, located approximately 384.8 light-years (117.99 parsecs) from the Solar System. First announced in 2024 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 4.9943% across the stellar disk), this world measures 11.92 Earth radii (1.06 Jupiter radii) and has a measured mass of 254 Earth masses (0.8 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.83 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.79 g⊕ (17.55 m/s²), and an escape velocity of 51.6 km/s.
In its orbital architecture around TOI-6034, TOI-6034 b completes one full revolution every 2.576 Earth days at a semi-major axis of 0.02949 AU (an ultra-close orbit less than one-seventh of Mercury's 0.387 AU distance from the Sun, where strong stellar tidal forces typically induce synchronous rotation). Its mean orbital velocity is approximately 124.5 km/s (compared to Earth's 29.8 km/s). With a near-circular eccentricity of e = 0.04 (ranging from 0.0283 AU at periapsis to 0.0307 AU at apoapsis), the planet experiences minimal orbital distance variation.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 714 K (+441°C / +826°F) and receiving 43.00 S⊕ (~58,523 W/m²), TOI-6034 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-6034 is classified as a stellar host with an effective photospheric temperature of 3,635 K, a radius of 0.489 R☉, a mass of 0.514 M☉, an estimated bolometric luminosity of 0.037 L☉. Stellar evolution modeling indicates an estimated stellar age of 7.8 Gyr and a metallicity of [Fe/H] = -0.09 dex (near-solar heavy-element abundance). From Earth, TOI-6034 shines at apparent V-band magnitude 15.189 (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-6034 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 3,635 K |
| Stellar Radius | 0.4890 R☉ |
| Stellar Mass | 0.5140 M☉ |
| Bolometric Luminosity | 0.037 L☉ |
| Metallicity [Fe/H] | -0.090 dex |
| Stellar Age | 7.800 Gyr |
| Apparent Magnitude | V: 15.189 · G: 14.314 |
| System Architecture | 2 Stars, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.029490 AU |
| Orbital Period | 2.576 days |
| Mean Orbital Velocity | 124.5 km/s |
| Orbital Eccentricity (e) | 0.04000 |
| Orbital Inclination (i) | 87.0600° |
| Mean Bulk Density | 0.83 g/cm³ (51.6 km/s vesc) |
| Insolation Flux | 43.0000 S⊕ (~58,523 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 384.800 LY (117.992 pc) |