V2376 Ori b
Astrophysical Synthesis & Habitability Characterization
V2376 Ori b is a confirmed gas giant exoplanet orbiting the star V2376 Ori. First announced in 2025 by Multiple Observatories using the Imaging detection technique (resolved directly via high-contrast coronagraphic or interferometric imaging), this world measures 87.206 Earth radii (7.78 Jupiter radii) and has a measured mass of 6356.568 Earth masses (20 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.05 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.84 g⊕ (8.24 m/s²), and an escape velocity of 95.5 km/s.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 2100 K (+1827°C / +3321°F), V2376 Ori b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star V2376 Ori is classified as a low-mass red dwarf of spectral type M with a mass of 0.45 M☉. Stellar evolution modeling indicates an estimated stellar age of 0.007 Gyr. From Earth, V2376 Ori shines at apparent Gaia G-band magnitude 16.549 (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: Multiple Observatories · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | V2376 Ori |
| Spectral Type | M |
| Effective Temp (Teff) | — |
| Stellar Radius | — |
| Stellar Mass | 0.4500 M☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | 0.007 Gyr |
| Apparent Magnitude | · G: 16.549 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 71.000000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.05 g/cm³ (95.5 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | — |