Kepler-395 c
Astrophysical Synthesis & Habitability Characterization
Kepler-395 c is a confirmed super-earth exoplanet orbiting the star Kepler-395, located approximately 1374.4 light-years (421.38 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0474% 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-395, Kepler-395 c completes one full revolution every 34.989 Earth days at a semi-major axis of 0.177 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 55 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.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for Kepler-395 c place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star Kepler-395 is classified as a stellar host with an effective photospheric temperature of 4,262 K, a radius of 0.556 R☉, a mass of 0.6228 M☉, an estimated bolometric luminosity of 0.092 L☉. Stellar evolution modeling indicates an estimated stellar age of 1.6 Gyr and a metallicity of [Fe/H] = -0.02 dex (near-solar heavy-element abundance). From Earth, Kepler-395 shines at apparent V-band magnitude 16.592 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-395 system is a multi-planet architecture hosting 2 confirmed worlds, with Kepler-395 c sharing its stellar neighborhood alongside Kepler-395 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-395 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,262 K |
| Stellar Radius | 0.5560 R☉ |
| Stellar Mass | 0.6228 M☉ |
| Bolometric Luminosity | 0.092 L☉ |
| Metallicity [Fe/H] | -0.020 dex |
| Stellar Age | 1.600 Gyr |
| Apparent Magnitude | V: 16.592 · G: 15.959 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.177000 AU |
| Orbital Period | 34.989 days |
| Mean Orbital Velocity | 55 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 89.9600° |
| Mean Bulk Density | 5.51 g/cm³ (14.8 km/s vesc) |
| Insolation Flux | 2.1100 S⊕ (~2,872 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1374.400 LY (421.382 pc) |