OGLE-2018-BLG-1011L b
Astrophysical Synthesis & Habitability Characterization
OGLE-2018-BLG-1011L b is a confirmed gas giant exoplanet orbiting the star OGLE-2018-BLG-1011L, located approximately 23157.1 light-years (7100 parsecs) from the Solar System. First announced in 2019 by OGLE using the Microlensing detection technique (detected via relativistic gravitational lensing of a background source star), this world measures 13.5 Earth radii (1.2 Jupiter radii) and has a measured mass of 570 Earth masses (1.79 Jupiter masses). Combining its mass and radius yields a mean bulk density of 1.28 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 3.13 g⊕ (30.69 m/s²), and an escape velocity of 72.7 km/s.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 13.500 R⊕, OGLE-2018-BLG-1011L 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 OGLE-2018-BLG-1011L is classified as a stellar host with a mass of 0.18 M☉. The OGLE-2018-BLG-1011L system is a multi-planet architecture hosting 2 confirmed worlds, with OGLE-2018-BLG-1011L b sharing its stellar neighborhood alongside OGLE-2018-BLG-1011L c.
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: OGLE · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | OGLE-2018-BLG-1011L |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | — |
| Stellar Radius | — |
| Stellar Mass | 0.1800 M☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | — |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 1.800000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 1.28 g/cm³ (72.7 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 23157.100 LY (7100.000 pc) |