Kepler-1050 c
Astrophysical Synthesis & Habitability Characterization
Kepler-1050 c is a confirmed super-earth exoplanet orbiting the star Kepler-1050, located approximately 1599.8 light-years (490.49 parsecs) from the Solar System. First announced in 2016 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0144% across the stellar disk), this world measures 1.48 Earth radii and has a measured mass of 2.79 Earth masses. Combining its mass and radius yields a mean bulk density of 4.75 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.27 g⊕ (12.45 m/s²), and an escape velocity of 15.4 km/s.
In its orbital architecture around Kepler-1050, Kepler-1050 c completes one full revolution every 21.128 Earth days at a semi-major axis of 0.15264 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 78.6 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 935 K (+662°C / +1224°F) and receiving 40.64 S⊕ (~55,316 W/m²), Kepler-1050 c orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-1050 is classified as a stellar host with an effective photospheric temperature of 6,010 K, a radius of 1.13 R☉, a mass of 1.09 M☉, an estimated bolometric luminosity of 1.495 L☉. Stellar evolution modeling indicates an estimated stellar age of 3.55 Gyr and a metallicity of [Fe/H] = 0.03 dex (near-solar heavy-element abundance). From Earth, Kepler-1050 shines at apparent V-band magnitude 13.198 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-1050 system is a multi-planet architecture hosting 2 confirmed worlds, with Kepler-1050 c sharing its stellar neighborhood alongside Kepler-1050 b.
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-1050 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,010 K |
| Stellar Radius | 1.1300 R☉ |
| Stellar Mass | 1.0900 M☉ |
| Bolometric Luminosity | 1.495 L☉ |
| Metallicity [Fe/H] | 0.030 dex |
| Stellar Age | 3.550 Gyr |
| Apparent Magnitude | V: 13.198 · G: 13.072 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.152640 AU |
| Orbital Period | 21.128 days |
| Mean Orbital Velocity | 78.6 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.4800° |
| Mean Bulk Density | 4.75 g/cm³ (15.4 km/s vesc) |
| Insolation Flux | 40.6440 S⊕ (~55,316 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1599.800 LY (490.488 pc) |