Kepler-1607 b
Astrophysical Synthesis & Habitability Characterization
Kepler-1607 b is a confirmed terrestrial exoplanet orbiting the star Kepler-1607, located approximately 4194.7 light-years (1286.1 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0049% across the stellar disk), this world measures 0.92 Earth radii and has a measured mass of 0.721 Earth masses. Combining its mass and radius yields a mean bulk density of 5.11 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 0.85 g⊕ (8.34 m/s²), and an escape velocity of 9.9 km/s.
In its orbital architecture around Kepler-1607, Kepler-1607 b completes one full revolution every 13.647 Earth days at a semi-major axis of 0.11978 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 95.5 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 913 K (+640°C / +1184°F) and receiving 449.63 S⊕ (~611,949 W/m²), Kepler-1607 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-1607 is classified as a stellar host with an effective photospheric temperature of 6,116 K, a radius of 1.21 R☉, a mass of 1.14 M☉, an estimated bolometric luminosity of 1.838 L☉. Stellar evolution modeling indicates an estimated stellar age of 3.16 Gyr and a metallicity of [Fe/H] = 0.05 dex (near-solar heavy-element abundance). From Earth, Kepler-1607 shines at apparent V-band magnitude 13.969 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere.
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-1607 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,116 K |
| Stellar Radius | 1.2100 R☉ |
| Stellar Mass | 1.1400 M☉ |
| Bolometric Luminosity | 1.838 L☉ |
| Metallicity [Fe/H] | 0.050 dex |
| Stellar Age | 3.160 Gyr |
| Apparent Magnitude | V: 13.969 · G: 13.875 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.119780 AU |
| Orbital Period | 13.647 days |
| Mean Orbital Velocity | 95.5 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 86.4700° |
| Mean Bulk Density | 5.11 g/cm³ (9.9 km/s vesc) |
| Insolation Flux | 449.6320 S⊕ (~611,949 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 4194.700 LY (1286.100 pc) |