WASP-110 b
Astrophysical Synthesis & Habitability Characterization
WASP-110 b is a confirmed gas giant exoplanet orbiting the star WASP-110, located approximately 896.8 light-years (274.96 parsecs) from the Solar System. First announced in 2021 by Paranal Observatory using the Transit detection technique (producing an estimated primary transit depth of 2.0106% across the stellar disk), this world measures 13.193 Earth radii (1.18 Jupiter radii) and has a measured mass of 154.782 Earth masses (0.49 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.37 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.89 g⊕ (8.73 m/s²), and an escape velocity of 38.3 km/s.
In its orbital architecture around WASP-110, WASP-110 b completes one full revolution every 3.778 Earth days. 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 1158 K (+885°C / +1625°F) and receiving 279.00 S⊕ (~379,719 W/m²), WASP-110 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star WASP-110 is classified as a solar-type yellow star of spectral type G9 with an effective photospheric temperature of 5,392 K, a radius of 0.853 R☉, a mass of 0.814 M☉, an estimated bolometric luminosity of 0.552 L☉. Stellar evolution modeling indicates an estimated stellar age of 11 Gyr and a metallicity of [Fe/H] = -0.15 dex (metal-poor relative to the Sun). From Earth, WASP-110 shines at apparent V-band magnitude 12.762 (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: Paranal Observatory · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | WASP-110 |
| Spectral Type | G9 |
| Effective Temp (Teff) | 5,392 K |
| Stellar Radius | 0.8530 R☉ |
| Stellar Mass | 0.8140 M☉ |
| Bolometric Luminosity | 0.552 L☉ |
| Metallicity [Fe/H] | -0.150 dex |
| Stellar Age | 11.000 Gyr |
| Apparent Magnitude | V: 12.762 · G: 12.552 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 3.778 days |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 88.3700° |
| Mean Bulk Density | 0.37 g/cm³ (38.3 km/s vesc) |
| Insolation Flux | 279.0000 S⊕ (~379,719 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 896.800 LY (274.960 pc) |