Dav's Celestial Firmament — ASO

By Sekai No on AppTrack Ninja.

See Earth's Orbit, Live in AR

Dav's Celestial Firmament is an iPhone augmented-reality app that threads the Earth's orbital path through the solar system with an enormous, perfectly regular lattice of markers, centered on the sun and fixed in space. It draws the ones above your horizon over the live camera view of the sky, exactly where they are. The lattice never moves. You do. Earth spins once a day and races along its orbit at about 30 km/s, so the you are constantly sweeping past the grid. Now, for the first time, you can watch that motion happen. A solar ephemeris accurate to about an arcminute computes your position…

Categories: Education, Entertainment

Keyword visibility, ranked search terms and daily position movement for Dav's Celestial Firmament.