The Firmament

Explore the sky from a world map and an observer-centred perspective in The Firmament. Choose a city, enter coordinates or place an observer on the map, then move through local date and time. Follow calculated Sun, Moon and planetary positions, phases, bright stars and constellations. Compare the main dome with your local observer dome, explore twilight, use Sun and Moon analemma guides, and zoom into the sky. Optional constellation artwork is available in observer mode. The interface supports English and Arabic. The free app includes the core sky and observer tools. Optional Pro unlocks Wind Simulation, Ocean Currents and Waves (beta), the Eclipse Catalogue, experimental Celestial Heavens, and up to three observers. Choose a one-time lifetime purchase or an automatically renewing monthly subscription; store prices are shown before purchase. Scientific scope The map and domes are conceptual displays of calculated astronomical directions, not measured physical structures or proof of an Earth model. Celestial Heavens is an experimental orbital illustration. Atmospheric and ocean layers show typical seasonal patterns, not current weather or forecasts. The app is for educational exploration, not navigation, safety decisions or professional measurement. Privacy Core sky calculations work offline. There is no app account, advertising or analytics. Optional device location is processed on the device. Enabling ISS requests orbital data from external providers, which receive normal network information such as an IP address. Purchases are handled by the platform store. Support: mapoftruthcontact@gmail.com