The Photographer’s Ephemeris

Publisher: Crookneck Consulting LLC
Device: iPad, iPhone, iPod Touch

The Photographer's Ephemeris

The Photographer’s Ephemeris (TPE) helps you plan outdoor photography shoots in natural light, particularly landscape and urban scenes. It’s a map-centric sun and moon calculator: see how the light will fall on the land, day or night, for any location on earth.

TPE’s map-based approach means you aren’t limited to a predefined list of locations, which often miss the places many photographers go. Instead, search for any place name on the planet or position the map pin exactly where you want it.

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 be visible behind nearby hills and mountains.

Key features:

– Time and direction of sunrise, sunset, moonrise and moonset
– Phase of the moon and % illumination
– Times of civil, nautical and astronomical twilight
– Graphical display on a map (Standard, Satellite, Hybrid, Topographic, Open Street Map and Open Aerial views)
– Movable map pins – drag and drop the pin exactly where you need it
– Compass display built-in for scouting in the field (on compatible devices)
– Shadow lengths displayed to scale on map
– Save any location you want – no fixed lists
– Key celestial events for the year, including moon phases, solstices, equinoxes
– Does not require network connection for rise/set time, azimuths and sun/moon position

Advanced features:

– Automatic time zone detection for any location on earth
– Determines elevation above sea level
– View azimuth and altitude of sun/moon for any time of day/night
– Distance, bearing and elevation angle between any two points
– Offline maps support for overlay map types
– Location import from KML or KMZ
– Location export via email as KML

Geek features:

– Find when the sun/moon will appear from behind a hill
– Visual sun and moon search: find rise/set date for a specified bearing between two map markers
– New crescent moon visibility
– Compensation for atmospheric refraction
– Compensation for elevation above the horizon
– Distance to the visible horizon


– Maps and elevation-based calculations require a data connection
– Topographic map data is available only between 60°N and 47°S
– Overlay maps are not available for the highest zoom levels
– Topographic maps courtesy of
– Open Aerial maps have very limited coverage outside the US
– OSM and Open Aerial map tiles courtesy of

TPE for Desktop has been a favorite of photographers around the world for over three years. Now you can carry it with you.

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