CoRoT-10 b
Astrophysical Synthesis & Habitability Characterization
CoRoT-10 b is a confirmed gas giant exoplanet orbiting the star CoRoT-10, located approximately 1103.7 light-years (338.39 parsecs) from the Solar System. First announced in 2010 by CoRoT using the Transit detection technique (producing an estimated primary transit depth of 1.5913% across the stellar disk), this world measures 10.87 Earth radii (0.97 Jupiter radii) and has a measured mass of 874 Earth masses (2.75 Jupiter masses). Combining its mass and radius yields a mean bulk density of 3.75 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 7.4 g⊕ (72.57 m/s²), and an escape velocity of 100.3 km/s.
In its orbital architecture around CoRoT-10, CoRoT-10 b completes one full revolution every 13.241 Earth days at a semi-major axis of 0.1055 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 86.7 km/s (compared to Earth's 29.8 km/s). The planet follows a highly eccentric trajectory (e = 0.53, swinging from 0.0496 AU at periapsis out to 0.1614 AU at apoapsis), pointing to past dynamical scattering or secular gravitational perturbations.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 600 K (+327°C / +621°F) and receiving 16.11 S⊕ (~21,924 W/m²), CoRoT-10 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star CoRoT-10 is classified as an orange K-type star of spectral type K1 V with an effective photospheric temperature of 5,075 K, a radius of 0.79 R☉, a mass of 0.89 M☉, an estimated bolometric luminosity of 0.371 L☉. Stellar evolution modeling indicates an estimated stellar age of 3 Gyr and a metallicity of [Fe/H] = 0.26 dex (metal-rich relative to the Sun). From Earth, CoRoT-10 shines at apparent V-band magnitude 15.293 (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: CoRoT · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | CoRoT-10 |
| Spectral Type | K1 V |
| Effective Temp (Teff) | 5,075 K |
| Stellar Radius | 0.7900 R☉ |
| Stellar Mass | 0.8900 M☉ |
| Bolometric Luminosity | 0.371 L☉ |
| Metallicity [Fe/H] | 0.260 dex |
| Stellar Age | 3.000 Gyr |
| Apparent Magnitude | V: 15.293 · G: 14.665 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.105500 AU |
| Orbital Period | 13.241 days |
| Mean Orbital Velocity | 86.7 km/s |
| Orbital Eccentricity (e) | 0.53000 |
| Orbital Inclination (i) | 88.5500° |
| Mean Bulk Density | 3.75 g/cm³ (100.3 km/s vesc) |
| Insolation Flux | 16.1089 S⊕ (~21,924 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1103.700 LY (338.386 pc) |