Complete catalog
Every size. Several ways to rank.
The query starts with confirmed planets in NASA Exoplanet Archive PSCompPars. Rocky, sub-Neptune or giant is not an exclusion rule: composition, evidence and observability are filters.
Recent Venus to Early Mars, with Kopparapu boundaries adjusted by stellar temperature when available.
Definition and limits →Transparent physical index
Atlas Habitability Index
AHI summarizes how compatible the reported or derived bulk parameters are with surface liquid-water scenarios. It is calculated on a 0–100 scale and never excludes a planet by size.
This is not a probability of life.55Thermal position0–55 · incident flux relative to the optimistic and conservative Kopparapu limits
35Surface-regime proxy0–35 · radius, mass and bulk-density proxy; large worlds remain in the catalog
10Orbital stability0–10 · eccentricity; a missing value is neutral here and lowers confidence separately
Showing 0 of 0 worlds in the current selection
AHI ranks physical compatibility, not the probability that life exists.Each catalog card shows the essential physical quantities. Select any planet to open composition, water/ocean and atmosphere assessments with evidence status.
No size is excluded. Small planets, transition-range worlds, sub-Neptunes, and giants share the same selection; likely composition is only a filter.
AHI = thermal position (55) + surface-regime proxy (35) + orbital stability (10). AHI ranks physical compatibility, not the probability that life exists.
“Top 500” shows up to 500 available results. If the selection contains fewer objects, the true total appears without artificially filling the list.