Events from Wikidata; descriptions from Wikipedia (CC BY-SA); photographs from Wikimedia Commons under the licence shown in each panel.
Earth: NASA Blue Marble. Borders: Natural Earth. Stars: catalog positions from d3-celestial (J2000 epoch), with precession and nutation. Star brightness is adapted for screen visibility; no random stars are added. Sun, Moon and planet positions: astronomy-engine.
Explore within 140 Earth radii of the center. XYZ uses an Earth-fixed frame: X points to the equator at Greenwich, Y north, and Z to 90°W. The clock also drives the sky. Solar System bodies use geometric positions, without light travel, aberration or refraction corrections. Catalog star directions omit proper motion. Planet points are enlarged symbols; Sun and Moon angular sizes use their physical radii. Sky coverage: 1900–2100; dates outside this range show no calculated sky. A date without an event time is shown at 00:00 UTC as a viewing assumption.