WASP-130 b
Astrophysical Synthesis & Habitability Characterization
WASP-130 b is a confirmed gas giant exoplanet orbiting the star WASP-130, located approximately 561.8 light-years (172.26 parsecs) from the Solar System. First announced in 2016 by SuperWASP-South using the Transit detection technique (producing an estimated primary transit depth of 0.9076% across the stellar disk), this world measures 9.976 Earth radii (0.89 Jupiter radii) and has a measured mass of 390.931 Earth masses (1.23 Jupiter masses). Combining its mass and radius yields a mean bulk density of 2.17 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 3.93 g⊕ (38.54 m/s²), and an escape velocity of 70 km/s.
In its orbital architecture around WASP-130, WASP-130 b completes one full revolution every 11.551 Earth days at a semi-major axis of 0.1012 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 95.3 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 833 K (+560°C / +1040°F) and receiving 56.36 S⊕ (~76,699 W/m²), WASP-130 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star WASP-130 is classified as a solar-type yellow star of spectral type G6 with an effective photospheric temperature of 5,625 K, a radius of 0.96 R☉, a mass of 1.04 M☉, an estimated bolometric luminosity of 0.828 L☉. Stellar evolution modeling indicates an estimated stellar age of 2 Gyr and a metallicity of [Fe/H] = 0.26 dex (metal-rich relative to the Sun). From Earth, WASP-130 shines at apparent V-band magnitude 11.104 (faint and requiring research-grade or CCD telescopic photometry) in the Southern 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: SuperWASP-South · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | WASP-130 |
| Spectral Type | G6 |
| Effective Temp (Teff) | 5,625 K |
| Stellar Radius | 0.9600 R☉ |
| Stellar Mass | 1.0400 M☉ |
| Bolometric Luminosity | 0.828 L☉ |
| Metallicity [Fe/H] | 0.260 dex |
| Stellar Age | 2.000 Gyr |
| Apparent Magnitude | V: 11.104 · G: 10.972 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.101200 AU |
| Orbital Period | 11.551 days |
| Mean Orbital Velocity | 95.3 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 88.6600° |
| Mean Bulk Density | 2.17 g/cm³ (70 km/s vesc) |
| Insolation Flux | 56.3550 S⊕ (~76,699 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 561.800 LY (172.256 pc) |