Kepler-295 c
Astrophysical Synthesis & Habitability Characterization
Kepler-295 c is a confirmed terrestrial exoplanet orbiting the star Kepler-295, located approximately 5542 light-years (1699.19 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0143% across the stellar disk), this world measures 1.17 Earth radii and has a measured mass of 1.71 Earth masses. Combining its mass and radius yields a mean bulk density of 5.89 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.25 g⊕ (12.26 m/s²), and an escape velocity of 13.5 km/s.
In its orbital architecture around Kepler-295, Kepler-295 c completes one full revolution every 21.526 Earth days at a semi-major axis of 0.142 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 71.8 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 621 K (+348°C / +658°F) and receiving 141.40 S⊕ (~192,445 W/m²), Kepler-295 c orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-295 is classified as a stellar host with an effective photospheric temperature of 5,603 K, a radius of 0.898 R☉, a mass of 0.89 M☉, an estimated bolometric luminosity of 0.713 L☉. Stellar evolution modeling indicates an estimated stellar age of 6.46 Gyr and a metallicity of [Fe/H] = -0.03 dex (near-solar heavy-element abundance). From Earth, Kepler-295 shines at apparent V-band magnitude 14.631 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-295 system is a multi-planet architecture hosting 3 confirmed worlds, with Kepler-295 c sharing its stellar neighborhood alongside Kepler-295 b, Kepler-295 d.
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-295 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,603 K |
| Stellar Radius | 0.8980 R☉ |
| Stellar Mass | 0.8900 M☉ |
| Bolometric Luminosity | 0.713 L☉ |
| Metallicity [Fe/H] | -0.030 dex |
| Stellar Age | 6.460 Gyr |
| Apparent Magnitude | V: 14.631 · G: 14.433 |
| System Architecture | 1 Star, 3 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.142000 AU |
| Orbital Period | 21.526 days |
| Mean Orbital Velocity | 71.8 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 86.2000° |
| Mean Bulk Density | 5.89 g/cm³ (13.5 km/s vesc) |
| Insolation Flux | 141.4000 S⊕ (~192,445 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 5542.000 LY (1699.190 pc) |