About Totality Trail

An educational eclipse visualiser based on Besselian elements, local contacts, obscuration and solar altitude.

Sources and method

NASA Besselian elements and Natural Earth outlines are used for visual planning estimates; weather, terrain and the exact observer position affect what is seen.

NASA: Besselian Elements · Natural Earth

Safety

Never look at the Sun without certified eclipse viewers. Only remove them during locally visible totality; eye protection is always required for annular eclipses.

Accessibility

Use High contrast for stronger contrast. Keyboard controls and local or UTC time are supported.