NGC 2682 YBP 1194 b
Astrophysical Synthesis & Habitability Characterization
NGC 2682 YBP 1194 b is a confirmed gas giant exoplanet orbiting the star NGC 2682 YBP 1194, located approximately 2847.1 light-years (872.92 parsecs) from the Solar System. First announced in 2014 by Multiple Observatories using the Radial Velocity detection technique (measuring periodic Doppler reflex motion in the host star's spectrum), this world measures 12.3 Earth radii (1.1 Jupiter radii) and has a measured mass of 101.706 Earth masses (0.32 Jupiter masses). Combining its mass and radius yields a mean bulk density of 0.3 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.67 g⊕ (6.57 m/s²), and an escape velocity of 32.2 km/s.
In its orbital architecture around NGC 2682 YBP 1194, NGC 2682 YBP 1194 b completes one full revolution every 6.959 Earth days. The planet follows a highly eccentric trajectory (e = 0.3), pointing to past dynamical scattering or secular gravitational perturbations.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 12.300 R⊕, NGC 2682 YBP 1194 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 NGC 2682 YBP 1194 is classified as a solar-type yellow star of spectral type G5 V with an effective photospheric temperature of 5,780 K, a radius of 0.99 R☉, a mass of 1.01 M☉, an estimated bolometric luminosity of 0.981 L☉. Stellar evolution modeling indicates an estimated stellar age of 4.15 Gyr and a metallicity of [Fe/H] = 0.023 dex (near-solar heavy-element abundance). From Earth, NGC 2682 YBP 1194 shines at apparent V-band magnitude 14.569 (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: Multiple Observatories · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | NGC 2682 YBP 1194 |
| Spectral Type | G5 V |
| Effective Temp (Teff) | 5,780 K |
| Stellar Radius | 0.9900 R☉ |
| Stellar Mass | 1.0100 M☉ |
| Bolometric Luminosity | 0.981 L☉ |
| Metallicity [Fe/H] | 0.023 dex |
| Stellar Age | 4.150 Gyr |
| Apparent Magnitude | V: 14.569 · G: 14.467 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 6.959 days |
| Orbital Eccentricity (e) | 0.30000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 0.3 g/cm³ (32.2 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2847.100 LY (872.920 pc) |