Kepler-1592 b
Astrophysical Synthesis & Habitability Characterization
Kepler-1592 b is a confirmed super-earth exoplanet orbiting the star Kepler-1592, located approximately 5347.2 light-years (1639.47 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0122% across the stellar disk), this world measures 1.54 Earth radii and has a measured mass of 2.99 Earth masses. Combining its mass and radius yields a mean bulk density of 4.51 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-1592, Kepler-1592 b completes one full revolution every 3.057 Earth days at a semi-major axis of 0.04 AU (an ultra-close orbit less than one-seventh of Mercury's 0.387 AU distance from the Sun, where strong stellar tidal forces typically induce synchronous rotation). Its mean orbital velocity is approximately 142.3 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 1202 K (+929°C / +1704°F) and receiving 1,918.34 S⊕ (~2,610,861 W/m²), Kepler-1592 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-1592 is classified as a stellar host with an effective photospheric temperature of 6,213 K, a radius of 1.28 R☉, a mass of 1.18 M☉, an estimated bolometric luminosity of 2.19 L☉. Stellar evolution modeling indicates an estimated stellar age of 2.69 Gyr and a metallicity of [Fe/H] = 0.04 dex (near-solar heavy-element abundance). From Earth, Kepler-1592 shines at apparent V-band magnitude 14.94 (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-1592 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,213 K |
| Stellar Radius | 1.2800 R☉ |
| Stellar Mass | 1.1800 M☉ |
| Bolometric Luminosity | 2.19 L☉ |
| Metallicity [Fe/H] | 0.040 dex |
| Stellar Age | 2.690 Gyr |
| Apparent Magnitude | V: 14.940 · G: 14.786 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.040000 AU |
| Orbital Period | 3.057 days |
| Mean Orbital Velocity | 142.3 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.1000° |
| Mean Bulk Density | 4.51 g/cm³ (15.6 km/s vesc) |
| Insolation Flux | 1918.3400 S⊕ (~2,610,861 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 5347.200 LY (1639.470 pc) |