A real-ephemeris 3D universe explorer in the browser
7 hours ago
- #space simulation
- #educational tool
- #astronomy software
- Space Time is a free 3D universe explorer running in any modern browser without downloads or accounts, compatible with desktop, phones, and VR.
- It accurately simulates real-time orbits of planets, moons, dwarf planets, asteroids, and comets using JPL ephemeris data at 60fps, with true surface maps.
- Users can replay historical space missions, track satellites like the ISS, and explore surfaces of Earth, Moon, or Mars with accurate sky views.
- Features include a time scrubber for date navigation, eclipse predictions, deep-time axial precession over 28 millennia, and occultations of Jupiter’s moons.
- It offers tools for astronomers: ephemeris generators, field-of-view overlays, almanac tables with CSV export, and AR sky compass with live object labeling.
- The simulation scales from solar system objects to 118,000 stars, the Milky Way, galaxies, and the cosmic microwave background in a seamless zoom.
- Real exoplanet systems like TRAPPIST-1 are included with habitable zones, plus live NOAA aurora data and JPL comet/asteroid streams.
- Used by educators, stargazers, and astrophotographers, it’s free for classrooms, museums, and home use, with no installation required.