The Photographer's Ephemeris

"The Photographer's Ephemeris (TPE) is a highly regarded app for nature photographers, offering essential tools for planning outdoor shoots. This map-centric Sun, Moon, and Milky Way calculator provides accurate information on how the light will interact with the land, whether it's day or night and any location on earth.

TPE offers a range of features to cater to all your photo planning needs. From providing real-time data on the sun, moon, and Milky Way for your current location, to helping you plan precise alignments for future shoots, this app has it all. With the help of augmented reality, line-of-sight analysis, and visual search capabilities, TPE supports even the most complex photo planning requirements.

One standout feature of TPE is its night mode, which offers a 3D representation of the Milky Way, pole stars, and major constellations directly over the map. This allows users to easily visualize and align their shots accordingly.

With TPE, you can also save and manage a list of your favorite photographic locations using various map types, including offline maps. Favorite locations are conveniently displayed on the map, ensuring easy access.

Advanced features of TPE include visual sun and moon searches, automatic time zone and elevation detection, correction for atmospheric refraction and height above the horizon. These features guarantee that you have the most accurate information at your disposal for planning your shoots.

TPE goes even further by enabling users to determine when the sun or moon will rise from behind nearby hills and mountains.

Key features of TPE include:

• Time and direction of sun, moon, and galactic center rise and set
• Azimuth and altitude display for sun/moon and the galactic center at any time
• 3D map overlay showcasing the Milky Way, stars, and asterisms
• Moon phase and percentage illumination
• Civil, nautical, and astronomical twilight information
• Multiple topographic and offline map types
• Movable map pins for precise location placement
• Map autorotation using the compass (on compatible devices)
• Scale representation of shadow lengths directly on the map
• Customizable location saving with no fixed lists
• Celestial event notifications including moon phases, apogee, perigee, solstice, and equinox
• No network connection required for rise/set time, azimuths, and sun/moon position

TPE also offers a range of advanced features that cater to the more enthusiastic photographers:

• Augmented reality view for location scouting
• Synchronization of saved locations between devices and the free TPE web app
• Automatic time zone detection
• Elevation above sea level information
• Distance, bearing, and elevation angle calculations between two points
• Location import/export options via KML files
• Magnetic north display option
• Configurable timeline display
• Sun/moon transit times information
• 'Golden hour' time/duration display
• Light pollution overlay to help with planning

For more advanced users, TPE provides additional geek features:

• Line of sight analysis to determine when the sun/moon will appear behind hills or ridges
• Advanced visual sun and moon searches with customizable azimuth or altitude priority
• New crescent moon visibility information
• Visible horizon distance calculations

TPE offers various map types for users to choose from, including Standard, Satellite/Hybrid, Terrain, and additional options like OpenCycleMap Topographic and OpenStreetMap.

Note that for sunrise/sunset color forecasts, a subscription to the Skyfire service is required, covering lower 48, southern Canada, and Europe. These forecasts are available via in-app purchase.

Please be aware that some features, such as maps and elevation calculations, require a data connection. However, previously downloaded offline map tiles can be accessed without a connection. Additionally, topographic map data is only available between 60°N and 47°S. The availability of map types is subject to change based on third-party map service availability and terms or conditions. The app currently supports only the English language.

Augmented reality features are available on devices iPhone 6s or later, iPad Pro, or 2017 models running iOS 11 or later."