KIC 5479689 b
Astrophysical Synthesis & Habitability Characterization
KIC 5479689 b is a confirmed gas giant exoplanet orbiting the star KIC 5479689, located approximately 1483.8 light-years (454.95 parsecs) from the Solar System. First announced in 2021 by Kepler using the Orbital Brightness Modulation detection technique, this world measures 14.2 Earth radii (1.27 Jupiter radii) and has a measured mass of 158.914 Earth masses (0.5 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.31 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.79 g⊕ (7.75 m/s²), and an escape velocity of 37.4 km/s.
In its orbital architecture around KIC 5479689, KIC 5479689 b completes one full revolution every 1.702 Earth days.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 14.200 R⊕, KIC 5479689 b exceeds the empirical ~1.8–2.2 R⊕ Fulton radius valley threshold, indicating a substantial hydrogen-helium or supercritical volatile envelope without a conventional solid terrestrial surface.
The host star KIC 5479689 is classified as a stellar host with an effective photospheric temperature of 5,459 K, a radius of 0.894 R☉, a mass of 0.966 M☉, an estimated bolometric luminosity of 0.637 L☉. Stellar evolution modeling indicates a metallicity of [Fe/H] = 0.161 dex (metal-rich relative to the Sun). From Earth, KIC 5479689 shines at apparent V-band magnitude 13.929 (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 | KIC 5479689 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,459 K |
| Stellar Radius | 0.8940 R☉ |
| Stellar Mass | 0.9660 M☉ |
| Bolometric Luminosity | 0.637 L☉ |
| Metallicity [Fe/H] | 0.161 dex |
| Stellar Age | — |
| Apparent Magnitude | V: 13.929 · G: 13.746 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 1.702 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.31 g/cm³ (37.4 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1483.800 LY (454.950 pc) |