A plan for tonight
See where darkness, your available hours and the stored horizon overlap. Forecast clear windows are shown separately from visibility.
Your sky, in your pocket
Turn your hitlist into your next capture.
Save your place and horizon, choose your telescope, and find when your favourite objects meet a forecast clear window. Keep your photos and plans together.
Free beta · no account required · EN / NL / DE
Smart Telescope AtlasYour sky. Your telescope. Your next capture.
Your next capture
Start with your own sky.
Save an observing place and choose your telescope. Your horizon and hitlist turn a clear spell into a personal plan.
Set up my place →Built around your own sky
Your place and hitlist
Save one observing place, set or scan its horizon, and mark the objects you want to capture or try again.
Your private photo atlas
Keep photos with the telescope, exposure time and notes. Publication needs your separate permission and manual moderation.
A telescope that fits your targets
Compare native framing for your hitlist and open the source-backed telescope guides. Framing is not a prediction of image quality.
Smart Telescope Atlas
Choose your test version
Browser beta
Available now on phone, tablet and desktop. Your data is stored in this browser; it does not automatically sync with the native apps.
Open the free browser beta →Android
Signed native test APK, downloaded directly from this site. Not a Google Play release.
Download Android test APK ↓SHA-256 checksum
c158ac39bb72dfd434c1a1717f96f6bebf25062f1fd73ddf50395032c9df90b4iPhone & iPad
The native iOS project is prepared. A signed iPhone build and TestFlight distribution still require Apple setup and device testing. You can use the browser beta on iOS now.
TestFlight not available yet
Open the free browser beta →The app interface is currently available in English, Dutch and German.
What to expect from this beta
Personal clear-night push is not active. Camera/compass horizon scans need checking on your own device; manual horizon points remain available. Forecasts are estimates. Start by reviewing the initial open-horizon profile.
Install and start testing
Android
- Download the test APK on your Android phone.
- Open the file. If Android asks, allow installation from this download source for this app.
- Open Smart Telescope Atlas, save your place and select your telescope. Check your horizon before using the plan.
iPhone & iPad
- Open the browser beta in Safari.
- To keep it on your home screen, use Share → Add to Home Screen. This opens the web version; it is not the native TestFlight app.
Your photos stay private until you choose to share
Local photos and profile data stay in the app or browser where you saved them. Reinstalling or clearing storage can remove them. Submitting for publication is a separate action.
Privacy →