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"Head and shoulders above the crowd is The Photographer’s Ephemeris. Odd name, great app." - National Geographic "One of the most useful apps for any nature photographer" - Outdoor Photographer Magazine "It worked perfectly. The program was dead on…" - National Geographic "One of the most powerful photography applications that I've seen, one that you'll be using for years and years." - AdoramaTV The Photographer's Ephemeris (TPE) helps plan outdoor photography shoots in natural light, particularly landscape and urban scenes. It's a map-centric Sun, Moon and Milky Way calculator: see how the light will fall on the land, day or night, for any location on earth. Whether you need at-a-glance information on today's sun, moon and Milky Way data for your current location, or need to plan a precise alignment of the full moon for a future shoot, TPE has the tools you need. The combination of augmented reality, line-of-sight analysis and visual search supports the most sophisticated photo planning needs. Night mode features a 3D representation of the Milky Way, pole stars and major constellations directly over the map, so you can easily visualize exactly how to align your shot. Research and save your own list of favorite photographic locations, using 7 different map types (including 2 offline maps) and save them in your locations list. Favorite locations are always displayed right on the map. Advanced features including visual sun and moon search, automatic time zone and elevation detection, correction for atmospheric refraction and height above the horizon, ensuring that you have the best possible information for planning your shoot. You can even determine when the sun or moon will rise from behind nearby hills and mountains. Key features: - Time/direction of sun, moon, and galactic center rise/set - View azimuth and altitude of sun/moon and the galactic center for any time of day/night - Milky Way, stars and asterisms visualization via 3D map overlay - Moon phase and % illumination - Civil, nautical and astronomical twilight - 2 topographic maps - 2 offline map types - Movable map pins: drag and drop the pin exactly where you need it - Map autorotation using the compass (on compatible devices) - Shadow lengths displayed to scale on map - Save any location you want: no fixed lists - Celestial events including moon phases, apogee, perigee, solstice, equinox - Solar eclipse details for August 12, 2026 and beyond: maps, simulator, times - Network connection not required for rise/set time, azimuths and sun/moon position Advanced features: - Augmented reality view for on location scouting - Saved location synchronization between devices and the free TPE web app - Automatic time zone detection - Elevation above sea level - Distance, bearing and elevation angle between any two points - Location import/export from KML - Magnetic north option - Configurable timeline display - Sun/moon transit times - 'Golden hour' time/duration - Light pollution overlay - Event countdown and notifications Geek features: - Line of sight analysis - Find when the sun/moon will appear from behind a hill or ridge - Advanced visual sun and moon search - Azimuth or altitude search priority - New crescent moon visibility - Distance to the visible horizon Available map types include: - Standard, Satellite/Hybrid, Terrain - OpenCycleMap Topographic - OpenStreetMap Sunrise/sunset color forecasts are available (covering lower 48, southern Canada and Europe) with an optional subscription to the Skyfire service, available via in-app purchase. Note: - Maps and elevation-based calculations require a data connection, except for offline map tiles previously downloaded and stored on your device - Topographic map data is available only between 60°N and 47°S - Availability of map types is subject to change, due to 3rd party map service availability, terms or conditions