Kepler-1510 b

Astrophysical Synthesis & Habitability Characterization

Kepler-1510 b is a confirmed sub-neptune exoplanet orbiting the star Kepler-1510, located approximately 5532.4 light-years (1696.25 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0579% across the stellar disk), this world measures 3.36 Earth radii (0.3 Jupiter radii) and has a measured mass of 11.2 Earth masses. Combining its mass and radius yields a mean bulk density of 1.63 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.99 g⊕ (9.71 m/s²), and an escape velocity of 20.4 km/s.

In its orbital architecture around Kepler-1510, Kepler-1510 b completes one full revolution every 84.704 Earth days at a semi-major axis of 0.4089 AU (situated at an orbital separation between Mercury's 0.39 AU and Venus's 0.72 AU). Its mean orbital velocity is approximately 52.5 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 537 K (+264°C / +507°F) and receiving 14.04 S⊕ (~19,103 W/m²), Kepler-1510 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.

The host star Kepler-1510 is classified as a stellar host with an effective photospheric temperature of 6,200 K, a radius of 1.28 R☉, a mass of 1.19 M☉, an estimated bolometric luminosity of 2.172 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.75 Gyr and a metallicity of [Fe/H] = 0.04 dex (near-solar heavy-element abundance). From Earth, Kepler-1510 shines at apparent V-band magnitude 15.315 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere.

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