Kepler-1950 b
Astrophysical Synthesis & Habitability Characterization
Kepler-1950 b is a confirmed super-earth exoplanet orbiting the star Kepler-1950, located approximately 2274.1 light-years (697.25 parsecs) from the Solar System. First announced in 2021 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.027% across the stellar disk), this world measures 1.527 Earth radii and has a measured mass of 2.95 Earth masses. Combining its mass and radius yields a mean bulk density of 4.57 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 15.5 km/s.
In its orbital architecture around Kepler-1950, Kepler-1950 b completes one full revolution every 10.777 Earth days at a semi-major axis of 0.0871 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 87.9 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 752 K (+479°C / +894°F) and receiving 75.83 S⊕ (~103,205 W/m²), Kepler-1950 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-1950 is classified as a stellar host with an effective photospheric temperature of 5,455 K, a radius of 0.852 R☉, a mass of 0.759 M☉, an estimated bolometric luminosity of 0.577 L☉. Stellar evolution modeling indicates a metallicity of [Fe/H] = -0.34 dex (metal-poor relative to the Sun). From Earth, Kepler-1950 shines at apparent V-band magnitude 14.845 (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-1950 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,455 K |
| Stellar Radius | 0.8520 R☉ |
| Stellar Mass | 0.7590 M☉ |
| Bolometric Luminosity | 0.577 L☉ |
| Metallicity [Fe/H] | -0.340 dex |
| Stellar Age | — |
| Apparent Magnitude | V: 14.845 · G: 14.557 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.087100 AU |
| Orbital Period | 10.777 days |
| Mean Orbital Velocity | 87.9 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.8700° |
| Mean Bulk Density | 4.57 g/cm³ (15.5 km/s vesc) |
| Insolation Flux | 75.8300 S⊕ (~103,205 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2274.100 LY (697.253 pc) |