The Photographer's Ephemeris (TPE)
Latest News (July 30 2010)
1.1.0 update for TPE for iPhone is now available in the App store. We've added some neat search capabilities into this update - you can now use the two map pins to specify a direction, and then have TPE find the next or previous date when the sun or moon rises or sets in that direction. This is perfect for quickly finding that particular alignment you need for your shot, especially for the moon for whcih rise/set directions are far less intuitive. (However, remember that you'll still need to use TPE's details view and geodetic calculator if you're dealing with an obstacle such as a mountain or hill.)
New features:
- Visual sun search: find sunrise/set at a specified bearing
- Visual moon search: find full or new moonrise/set at a specified bearing
- Page descriptions: popup page description added to aid navigation through the app
- High resolution images for iPhone 4 and updated icons
If you like the app, please leave a review on the App Store!
Next up, an iPad version, currently in development. The update will be a universal app (likely renamed TPE for iOS). If you own TPE for iPhone, and also own an iPad, you'll be able to update for free. More on release timing in the next few weeks.
As always, please e-mail your questions and comments to support@photoephemeris.com.
TPE for iPhone Launched
TPE for iPhone has arrived! A favourite of photographers around the world, TPE gives you all the tools you need to plan outdoor photography shoots, be it landscape, cityscape, wildlife or architecture.
Click here to find out about TPE for iPhone in the App Store.
TPE for Desktop remains available free of charge - see the download links to the right.
What's it about?
The Photographer's Ephemeris (TPE) is a tool to help with the planning of all types of outdoor photography, but particularly landscape and urban scenes.
It is a map-centric sun and moon calculator: see how the light will fall on the land.
TPE's map-based approach means you are not limited to a predefined list of locations, which often don't include 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 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 of TPE for iPhone:
- Time and direction of sunrise and sunset
- Time and direction of moonrise and moonset
- Phase of the moon and % illumination
- Times of civil, nautical and astronomical twilight
- Graphical display on a map
- Save any location you want - no fixed lists
- 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
- Find when the sun/moon will appear from behind a hill
- Compensation for atmospheric refraction
- Compensation for elevation above the horizon
- Does not require network connection for rise/set times and azimuths. (Note: maps and elevation do require a data connection)



