Astra Chron, an explorable sky from any place and moment

Field notes

The site separates a global Globe view from an Observer view focused on the sky from a selected position. Its examples use recognizable geographic and archaeological settings, including a Stonehenge solstice alignment and photo-realistic 3D viewpoints from major peaks. The eclipse calendar is deliberately limited to total eclipses and supplies peak coordinates for each listed event, while the interface also advertises shareable states that retain camera, layers, location, and time.