See exactly what to observe tonight.
Built for the eyepiece. Live sky conditions, hundreds of deep-sky objects, guided programs, and Moon Explorer — all in one.
Be first to know when it launches.
You own the telescope. You have the night. But finding the best targets — and knowing what you're looking at — shouldn't require three different apps and a stack of charts.
Your personal
tour of the sky.
A curated list sorted by what's highest and best tonight. Greatest Hits, Stellar Arc, Galaxy Focus — tailored programs for any telescope and any experience level.
The Moon,
in extraordinary detail.
Tonight's exact lunar phase with named seas, mountain ranges, and all six Apollo landing sites mapped precisely. History and astronomy, together in one view.
Plan the
perfect night.
Hour-by-hour cloud cover, seeing index, humidity, and wind — powered by NWS. Drag the time slider to scope out your best window before heading out for a stargazing session.
Hundreds of Objects.
Zero guessing.
The full Messier and Caldwell catalogs, and more — sorted by what's actually visible from your exact location right now. Real-time altitude, equipment notes, and observing tips for every object.
Not just a catalog.
A classroom.
Tap any object type for a full breakdown — annotated diagrams, astrophysics in plain English, and the story behind every structure in the sky. Other apps tell you where to point. This one explains what you're seeing.
Never miss
a launch.
Live ISS pass predictions and rocket launch countdowns with T-minus badges. Every mission, tracked in real time — with alerts 30 minutes before ignition.
Yours forever.
Be first to know when it launches.