CoRoT-36 b

Astrophysical Synthesis & Habitability Characterization

CoRoT-36 b is a confirmed gas giant exoplanet orbiting the star CoRoT-36, located approximately 3020.1 light-years (925.96 parsecs) from the Solar System. First announced in 2022 by CoRoT using the Transit detection technique (producing an estimated primary transit depth of 0.9087% across the stellar disk), this world measures 15.805 Earth radii (1.41 Jupiter radii) and has a measured mass of 216.123 Earth masses (0.68 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.3 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.87 g⊕ (8.53 m/s²), and an escape velocity of 41.4 km/s.

In its orbital architecture around CoRoT-36, CoRoT-36 b completes one full revolution every 5.617 Earth days at a semi-major axis of 0.066 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 127.8 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 1567 K (+1294°C / +2361°F) and receiving 1,491.03 S⊕ (~2,029,290 W/m²), CoRoT-36 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.

The host star CoRoT-36 is classified as a warm F-type star of spectral type F3 V with an effective photospheric temperature of 6,730 K, a radius of 1.52 R☉, a mass of 1.32 M☉, an estimated bolometric luminosity of 4.252 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.1 Gyr and a metallicity of [Fe/H] = -0.1 dex (near-solar heavy-element abundance). From Earth, CoRoT-36 shines at apparent V-band magnitude 13.126 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere.

Discovery Facility: CoRoT · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).