Kepler-1714 b

Astrophysical Synthesis & Habitability Characterization

Kepler-1714 b is a confirmed sub-neptune exoplanet orbiting the star Kepler-1714, located approximately 1335.5 light-years (409.46 parsecs) from the Solar System. First announced in 2021 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0206% across the stellar disk), this world measures 3.264 Earth radii (0.29 Jupiter radii) and has a measured mass of 10.7 Earth masses. Combining its mass and radius yields a mean bulk density of 1.7 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1 g⊕ (9.81 m/s²), and an escape velocity of 20.3 km/s.

In its orbital architecture around Kepler-1714, Kepler-1714 b completes one full revolution every 10.275 Earth days at a semi-major axis of 0.10549 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 111.7 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 1211 K (+938°C / +1720°F) and receiving 504.30 S⊕ (~686,352 W/m²), Kepler-1714 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.

The host star Kepler-1714 is classified as a stellar host with an effective photospheric temperature of 6,150 K, a radius of 2.086 R☉, a mass of 1.448 M☉, an estimated bolometric luminosity of 5.585 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.29 Gyr and a metallicity of [Fe/H] = 0.22 dex (metal-rich relative to the Sun). From Earth, Kepler-1714 shines at apparent V-band magnitude 11.041 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere.

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