Kepler-414 b
Astrophysical Synthesis & Habitability Characterization
Kepler-414 b is a confirmed super-earth exoplanet orbiting the star Kepler-414, located approximately 1348.5 light-years (413.46 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0275% across the stellar disk), this world measures 1.71 Earth radii and has a measured mass of 3.5 Earth masses. Combining its mass and radius yields a mean bulk density of 3.86 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.2 g⊕ (11.77 m/s²), and an escape velocity of 16 km/s.
In its orbital architecture around Kepler-414, Kepler-414 b completes one full revolution every 4.7 Earth days at a semi-major axis of 0.0543 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 125.7 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 1024 K (+751°C / +1384°F) and receiving 241.17 S⊕ (~328,234 W/m²), Kepler-414 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-414 is classified as a stellar host with an effective photospheric temperature of 5,536 K, a radius of 0.946 R☉, a mass of 0.89 M☉, an estimated bolometric luminosity of 0.754 L☉. Stellar evolution modeling indicates an estimated stellar age of 1.55 Gyr and a metallicity of [Fe/H] = 0.18 dex (metal-rich relative to the Sun). From Earth, Kepler-414 shines at apparent V-band magnitude 13.378 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-414 system is a multi-planet architecture hosting 2 confirmed worlds, with Kepler-414 b sharing its stellar neighborhood alongside Kepler-414 c.
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-414 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,536 K |
| Stellar Radius | 0.9460 R☉ |
| Stellar Mass | 0.8900 M☉ |
| Bolometric Luminosity | 0.754 L☉ |
| Metallicity [Fe/H] | 0.180 dex |
| Stellar Age | 1.550 Gyr |
| Apparent Magnitude | V: 13.378 · G: 13.321 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.054300 AU |
| Orbital Period | 4.7 days |
| Mean Orbital Velocity | 125.7 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.4500° |
| Mean Bulk Density | 3.86 g/cm³ (16 km/s vesc) |
| Insolation Flux | 241.1710 S⊕ (~328,234 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1348.500 LY (413.460 pc) |