Zip Code Eclipse Calculator

This tool estimates solar eclipse visibility from a ZIP code for a chosen date by converting the ZIP to geographic coordinates and aligning them with official eclipse path data. It outputs local obscuration, timing, and duration.

Core logic uses authoritative eclipse path datasets and a geocoding step to translate postal codes into latitude/longitude. It then determines whether the observer lies inside the penumbra or umbra and estimates local start, maximum, and end times in the observer's time zone.

Audience includes educators, event planners, and travelers who need reliable, location-specific planning data. Its differentiators are ZIP-based input, consistency across repeated queries, and exportable outputs for reports or teaching materials. It handles general postal codes where data exists and provides clear handling of edge cases.

Outputs cover obscuration percentage, eclipse phase (partial or total), local event times, and a recommended viewing window, enabling efficient planning and classroom demonstrations.