About tool:
Authoritative resource for sunrise/sunset, time-zone, calendar and astronomy lookups by location and date. Constant companion in chronolocation work.
Bellingcat-developed open-source web tool that constrains the geographic regions where a photographed shadow could have been cast at a given local time.
Free open-source planetarium. Reproduces the night sky for any date, time and location — essential for verifying star, moon and constellation positions in imagery.
