Kepler-1064 b

Astrophysical Synthesis & Habitability Characterization

Kepler-1064 b is a confirmed super-earth exoplanet orbiting the star Kepler-1064, located approximately 1219.8 light-years (374 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0324% across the stellar disk), this world measures 1.55 Earth radii and has a measured mass of 3.02 Earth masses. Combining its mass and radius yields a mean bulk density of 4.47 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.26 g⊕ (12.36 m/s²), and an escape velocity of 15.6 km/s.

In its orbital architecture around Kepler-1064, Kepler-1064 b completes one full revolution every 16.541 Earth days at a semi-major axis of 0.1183 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 77.8 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 570 K (+297°C / +567°F) and receiving 24.87 S⊕ (~33,848 W/m²), Kepler-1064 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.

The host star Kepler-1064 is classified as a stellar host with an effective photospheric temperature of 5,153 K, a radius of 0.79 R☉, a mass of 0.85 M☉, an estimated bolometric luminosity of 0.395 L☉. Stellar evolution modeling indicates an estimated stellar age of 3.89 Gyr and a metallicity of [Fe/H] = 0 dex (near-solar heavy-element abundance). From Earth, Kepler-1064 shines at apparent V-band magnitude 13.958 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere.

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