Kepler-350 b
Astrophysical Synthesis & Habitability Characterization
Kepler-350 b is a confirmed super-earth exoplanet orbiting the star Kepler-350, located approximately 3120.9 light-years (956.86 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0122% across the stellar disk), this world measures 1.85 Earth radii and has a measured mass of 16.9 Earth masses. Combining its mass and radius yields a mean bulk density of 14.72 g/cm³ (an iron-enriched, high-compression rocky core), a surface gravity of 4.94 g⊕ (48.44 m/s²), and an escape velocity of 33.8 km/s.
In its orbital architecture around Kepler-350, Kepler-350 b completes one full revolution every 11.19 Earth days at a semi-major axis of 0.104 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 101.1 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 1037 K (+764°C / +1407°F) and receiving 257.72 S⊕ (~350,758 W/m²), Kepler-350 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-350 is classified as a stellar host with an effective photospheric temperature of 6,186 K, a radius of 1.534 R☉, a mass of 1.19 M☉, an estimated bolometric luminosity of 3.092 L☉. Stellar evolution modeling indicates an estimated stellar age of 4 Gyr and a metallicity of [Fe/H] = 0.041 dex (near-solar heavy-element abundance). From Earth, Kepler-350 shines at apparent V-band magnitude 13.965 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-350 system is a multi-planet architecture hosting 3 confirmed worlds, with Kepler-350 b sharing its stellar neighborhood alongside Kepler-350 c, Kepler-350 d.
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-350 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,186 K |
| Stellar Radius | 1.5340 R☉ |
| Stellar Mass | 1.1900 M☉ |
| Bolometric Luminosity | 3.092 L☉ |
| Metallicity [Fe/H] | 0.041 dex |
| Stellar Age | 4.000 Gyr |
| Apparent Magnitude | V: 13.965 · G: 13.761 |
| System Architecture | 1 Star, 3 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.104000 AU |
| Orbital Period | 11.19 days |
| Mean Orbital Velocity | 101.1 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 87.7600° |
| Mean Bulk Density | 14.72 g/cm³ (33.8 km/s vesc) |
| Insolation Flux | 257.7210 S⊕ (~350,758 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 3120.900 LY (956.859 pc) |