Star Guide: Sky Atlas is a friendly astronomy companion that turns the night sky into something you can explore, learn, and enjoy — right from your phone.
Have you ever looked up and wondered which constellation you were seeing, or what that bright star is called? Star Guide brings the sky closer. Browse a rich illustrated encyclopedia of constellations, stars, and deep-sky objects, then open the interactive sky map to see how it all fits together overhead.
Tap any constellation to read its story, discover the brightest stars within it, and jump straight to deep-sky treasures like galaxies and nebulae. Every object has its own page with clear, easy-to-read details, and a single tap takes you from the encyclopedia to its exact place on the sky map.
Whether you are a curious beginner, a stargazing hobbyist, or just someone who loves the night sky, Star Guide is a calm, beautiful way to learn the sky at your own pace — no telescope and no internet required.
WHAT YOU GET
• An interactive sky map with constellations, stars, and deep-sky objects.
• Zoom, pan, constellation lines and labels, and a magnitude filter.
• A full encyclopedia: constellations, stars, and deep-sky objects.
• "Show on sky map" — jump from any object straight to its position.
• Search across the whole catalog.
• Favorites and recently viewed for quick access.
• A daily "tonight's sky" notification you can turn on, off, or reschedule.
• Light and dark themes built for night viewing.
• Multiple languages, switchable instantly.
• Fully offline — no account, no internet needed after install.
WHY PEOPLE LOVE IT
• Learn the constellations and the stories behind them.
• Find and identify bright stars, galaxies, and nebulae.
• A relaxing, no-pressure way to explore the night sky.
• Great for families, students, and curious minds.
• Clean, modern, easy-to-use design that works on any phone.
• No sign-up, no clutter.
A NOTE ON THE CONTENT
Star Guide is an educational and reference app for learning about the night sky. The sky map is designed for discovery and enjoyment, not for precise navigation or professional scientific measurement. Data is drawn from open astronomical catalogs — see the Data Sources screen in the app for details.
PRIVACY
Star Guide works offline and keeps your preferences on your device. If ads are shown, they are provided by Google AdMob, which may process data in line with its own policies. See our Terms & Privacy page for details.
Look up, explore, and enjoy the night sky. ✨