Sideris
Offline plate-solving and an interactive sky map for astrophotography.
Identify exactly what your telescope sees, right from your phone.
Coming soon to the App Store and Google Play
Features
Offline plate-solving
Photograph directly your telescope's camera screen and Sideris identifies where it is pointing. No internet or mobile signal required.
Interactive sky map
Explore the night sky, including Messier and deep-sky objects, and see exactly where your image points.
Polar-scope alignment
A built-in polar-scope tool to help you align your equatorial mount quickly and accurately.
Moon phase calendar
Plan your imaging sessions around the Moon with an at-a-glance phase calendar.
Night mode
A red, dark-adapted interface that protects your night vision at the eyepiece.
Free to try
Start with free plate-solving credits, then unlock the full app with a single one-time purchase. No subscription.