{"scoreVersion":"1","description":"Heuristic ranking of Earth-like candidates, not a probability of life or a surface-temperature estimate.","components":{"habitableZone":"50 points in the conservative Kopparapu 2014 zone; 25 in the optimistic-only zone","size":"Up to 35 points for radius close to Earth's; mass used only when radius is unavailable","eccentricity":"Up to 15 points for low eccentricity; unknown eccentricity receives 7.5 neutral points and a data flag"},"eligibility":"2600–7200 K host star; within optimistic zone; radius 0.5–2.5 Earth radii and/or mass 0.1–10 Earth masses; no contradictory known size, controversial or circumbinary flag","rankingStability":"160 deterministic catalog-wide resamples using published asymmetric NASA errors. The 10th–90th percentile intervals and top-50 frequency are conditional on this independent-error model; missing errors, correlations and systematic effects are not modeled.","visualisation":"Interactive orbit and habitable-zone schematic from NASA catalog parameters. Planet appearances are artistic hypotheses; body sizes and animation speed are adjusted for readability.","skyMap":"RA and Dec locate the host system on a flat sky map. Distance is shown separately from NASA sy_dist; orbital position is not reconstructed.","hwcComparison":"PHL Habitable Worlds Catalog is a dated comparison of selection methods and does not affect this score. Its conservative/optimistic samples concern likely size and composition, not the same label as our habitable-zone class.","orbitExperiment":"Educational flux scenario using inverse-square distance scaling. It does not recalculate climate or candidate scores.","sources":["https://exoplanetarchive.ipac.caltech.edu/docs/TAP/usingTAP.html","https://doi.org/10.1088/2041-8205/787/2/L29","https://phl.upr.edu/hwc/data","https://astroedu.iau.org/activities/1624/the-engine-of-life/"]}