OGLE-2019-BLG-1053L b
Astrophysical Synthesis & Habitability Characterization
OGLE-2019-BLG-1053L b is a confirmed super-earth exoplanet orbiting the star OGLE-2019-BLG-1053L, located approximately 22178.6 light-years (6800 parsecs) from the Solar System. First announced in 2021 by KMTNet using the Microlensing detection technique (detected via relativistic gravitational lensing of a background source star), this world measures 1.38 Earth radii and has a measured mass of 2.48 Earth masses. Combining its mass and radius yields a mean bulk density of 5.2 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.3 g⊕ (12.75 m/s²), and an escape velocity of 15 km/s.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for OGLE-2019-BLG-1053L b place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star OGLE-2019-BLG-1053L is classified as a stellar host with a mass of 0.61 M☉.
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: KMTNet · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | OGLE-2019-BLG-1053L |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | — |
| Stellar Radius | — |
| Stellar Mass | 0.6100 M☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | — |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 3.400000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 5.2 g/cm³ (15 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 22178.600 LY (6800.000 pc) |