Kepler-760 c
Astrophysical Synthesis & Habitability Characterization
Kepler-760 c is a confirmed super-earth exoplanet orbiting the star Kepler-760, located approximately 2584.3 light-years (792.34 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0255% across the stellar disk), this world measures 1.48 Earth radii and has a measured mass of 2.79 Earth masses. Combining its mass and radius yields a mean bulk density of 4.75 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.27 g⊕ (12.45 m/s²), and an escape velocity of 15.4 km/s.
In its orbital architecture around Kepler-760, Kepler-760 c completes one full revolution every 2.467 Earth days at a semi-major axis of 0.03489 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 153.9 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 1139 K (+866°C / +1591°F) and receiving 453.65 S⊕ (~617,415 W/m²), Kepler-760 c orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-760 is classified as a stellar host with an effective photospheric temperature of 5,322 K, a radius of 0.85 R☉, a mass of 0.89 M☉, an estimated bolometric luminosity of 0.52 L☉. Stellar evolution modeling indicates an estimated stellar age of 4.57 Gyr and a metallicity of [Fe/H] = 0.08 dex (metal-rich relative to the Sun). From Earth, Kepler-760 shines at apparent V-band magnitude 15.181 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-760 system is a multi-planet architecture hosting 2 confirmed worlds, with Kepler-760 c sharing its stellar neighborhood alongside Kepler-760 b.
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: Kepler · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | Kepler-760 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,322 K |
| Stellar Radius | 0.8500 R☉ |
| Stellar Mass | 0.8900 M☉ |
| Bolometric Luminosity | 0.52 L☉ |
| Metallicity [Fe/H] | 0.080 dex |
| Stellar Age | 4.570 Gyr |
| Apparent Magnitude | V: 15.181 · G: 15.073 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.034890 AU |
| Orbital Period | 2.467 days |
| Mean Orbital Velocity | 153.9 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 86.6100° |
| Mean Bulk Density | 4.75 g/cm³ (15.4 km/s vesc) |
| Insolation Flux | 453.6480 S⊕ (~617,415 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2584.300 LY (792.336 pc) |