Kepler-1910 b
Astrophysical Synthesis & Habitability Characterization
Kepler-1910 b is a confirmed terrestrial exoplanet orbiting the star Kepler-1910. First announced in 2021 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0289% across the stellar disk), this world measures 1.184 Earth radii and has a measured mass of 1.78 Earth masses. Combining its mass and radius yields a mean bulk density of 5.91 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 13.7 km/s.
In its orbital architecture around Kepler-1910, Kepler-1910 b completes one full revolution every 5.689 Earth days at a semi-major axis of 0.0536 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 102.5 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 645 K (+372°C / +702°F) and receiving 40.88 S⊕ (~55,638 W/m²), Kepler-1910 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-1910 is classified as a stellar host with an effective photospheric temperature of 4,234 K, a radius of 0.639 R☉, a mass of 0.636 M☉, an estimated bolometric luminosity of 0.118 L☉. Stellar evolution modeling indicates an estimated stellar age of 13.9 Gyr and a metallicity of [Fe/H] = -0.02 dex (near-solar heavy-element abundance). From Earth, Kepler-1910 shines at apparent V-band magnitude 16.092 (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-1910 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,234 K |
| Stellar Radius | 0.6390 R☉ |
| Stellar Mass | 0.6360 M☉ |
| Bolometric Luminosity | 0.118 L☉ |
| Metallicity [Fe/H] | -0.020 dex |
| Stellar Age | 13.900 Gyr |
| Apparent Magnitude | V: 16.092 · G: 15.577 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.053600 AU |
| Orbital Period | 5.689 days |
| Mean Orbital Velocity | 102.5 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 88.6000° |
| Mean Bulk Density | 5.91 g/cm³ (13.7 km/s vesc) |
| Insolation Flux | 40.8800 S⊕ (~55,638 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | — |