"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
- 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

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 a subscription to the Skyfire service, available via in-app purchase.


- 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
- The app itself supports only English language at present
- Augmented reality requires an iPhone 6s (or later), iPad Pro or 2017 model and iOS 11 or later

What's New

Version 4.2.2

- Tap on map to toggle between "full screen" on/off (hides timeline and controls)
- Point elevation and sightline checks now use SRTM1 digital elevation model (where available)
- Open in Google Maps now always opens the native maps app, if installed
- Bug fixes
- Updated SDKs

Send your feedback and suggestions to - we'd love to hear from you.

Enjoying TPE? A review on the App Store really helps us to continue enhancing the app!

Ratings and Reviews

4.8 out of 5

287 Ratings

287 Ratings

Nothing else like it!

Sue D Nimh

Extremely useful app, if you want to plan your photography for a trip or event. Pick your location-instantly you see sun and moon rise and set times. Tap on the date to pick a future date. Swipe a finger across the display at the bottom to see the direction of sun or moon overlaid on the map-satellite photo help plan the shot, and even tells you if terrain will obstruct your view of eg sunset. I have used it to choose location for a one time trip to the Mackinaw Bridge, as well as look to see where is the closest place to travel for the next solar eclipse.

If you care about getting the most good locations for your photo trip, hands down this is the one to get!

Daily checker


I use this app everyday to check conditions. The apps has a learning curve but once you start using it it becomes second nature. Excellent for planning photo trips and locations. I really like the night time/Milky Way mode and the optional Skyfire feature. Highly recommend this app if your into landscape photography. Only issues I’ve had is the clunky sign in process for Skyfire. Usually have to turn the WiFi off on my iPhone in order to sign in.

Developer Response

Hi - thanks for your review!

Please contact us regarding Skyfire sign in ( - if you need to turn WiFi off, that could indicate a problem accessing our servers from your network. It's not something we've had any other reports of, but I'd be happy to investigate.

Great app but...


It works very well for sun/moon alignment but don’t rely on this app for sky colors. It fails quite a lot. The days that the app was showing very intense colors on the map I went out to photograph and it ended up being very boring and no much colors and the days that shows no colors at all, like white, I look outside my window and the sky and clouds were totally pink and beautiful colors. Trust in your instincts and go out when you think there’s a chance to be nice. Don’t trust this app for that!

Developer Response

Sorry the Skyfire forecasts have not always worked out for you. They are dependent on the accuracy of the underlying weather forecasts, which aren't always reliable.

Since your review, the Skyfire team has doubled the update frequency for sunrise forecasts in the 36 hours preceding the event, which I hope will improve performance.

Please do submit field reports via the app so we can continue to improve.


Crookneck Consulting LLC
75.8 MB
Photo & Video
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2010 – 2018 Crookneck Consulting LLC
In-App Purchases
  1. Skyfire (1-year) $29.99
  2. Skyfire (3-months) $9.99
  3. Skyfire Plus (3-months) $14.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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