: Allows users to view the sky as it appeared centuries ago or how it will look in the future. Users can also manually set any location on Earth to see the sky from different hemispheres. User Experience

Provides numerical position data in ecliptic, equatorial, and horizontal coordinate systems. Displays current moon phases and planetary retrogradicity.

: A sensitive, 3D window into the current starry sky.

: The app is designed to be a "quiet night sky" experience with no sounds or advertisements. Technical Details