Kepler-292 b
Astrophysical Synthesis & Habitability Characterization
Kepler-292 b is a confirmed super-earth exoplanet orbiting the star Kepler-292, located approximately 3445.8 light-years (1056.48 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0215% across the stellar disk), this world measures 1.32 Earth radii and has a measured mass of 2.3 Earth masses. Combining its mass and radius yields a mean bulk density of 5.51 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.32 g⊕ (12.94 m/s²), and an escape velocity of 14.8 km/s.
In its orbital architecture around Kepler-292, Kepler-292 b completes one full revolution every 2.581 Earth days at a semi-major axis of 0.035 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 147.5 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 1130 K (+857°C / +1575°F) and receiving 394.30 S⊕ (~536,644 W/m²), Kepler-292 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-292 is classified as a stellar host with an effective photospheric temperature of 5,299 K, a radius of 0.826 R☉, a mass of 0.865 M☉, an estimated bolometric luminosity of 0.483 L☉. Stellar evolution modeling indicates an estimated stellar age of 5.13 Gyr and a metallicity of [Fe/H] = 0.04 dex (near-solar heavy-element abundance). From Earth, Kepler-292 shines at apparent V-band magnitude 16.303 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-292 system is a multi-planet architecture hosting 5 confirmed worlds, with Kepler-292 b sharing its stellar neighborhood alongside Kepler-292 c, Kepler-292 d, Kepler-292 e, Kepler-292 f.
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-292 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,299 K |
| Stellar Radius | 0.8260 R☉ |
| Stellar Mass | 0.8650 M☉ |
| Bolometric Luminosity | 0.483 L☉ |
| Metallicity [Fe/H] | 0.040 dex |
| Stellar Age | 5.130 Gyr |
| Apparent Magnitude | V: 16.303 · G: 15.942 |
| System Architecture | 1 Star, 5 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.035000 AU |
| Orbital Period | 2.581 days |
| Mean Orbital Velocity | 147.5 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.0000° |
| Mean Bulk Density | 5.51 g/cm³ (14.8 km/s vesc) |
| Insolation Flux | 394.3010 S⊕ (~536,644 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 3445.800 LY (1056.480 pc) |