Alternative Exoplanet Habitability Ranking using Temporal Coherence Index (CRCT v2.0) – NASA Exoplanet Archive December 2025

This dataset presents a novel habitability ranking of confirmed exoplanets using a Temporal Coherence Index (CRCT v2.0).The index combines:Backward coherence: estimated conditions during early planetary history.Forward coherence: potential detectability with current and near-future telescopes.Input data:NASA Exoplanet Archive confirmed planets (6,065 entries as of December 2025).Filter applied: rocky planets (planetary radius ≤ 1.6 R⊕) in conservative habitable zone (equilibrium temperature 200–300 K).Output:Top 20 exoplanets ranked by average temporal coherence (backward + forward).Bar chart visualization.Full table in CSV format.The method is fully reproducible in Python (code included as supplementary file).This ranking provides an alternative perspective to traditional habitability indices (ESI, PHI) by incorporating multiscale temporal stability and detectability.