Star Chart

The night sky has always belonged to everyone. Now Star Chart does too.

Used by over 40 million people worldwide, Star Chart turns your Android device into a window onto the whole visible universe — just point it at the sky and the stars introduce themselves.

✦ Sponsor a Star
Star Chart is free. Every feature, every upgrade, every corner of the cosmos — no paywalls, no subscriptions. If Star Chart brings you joy, you can support it by sponsoring a real star and making it your own. A small act of cosmic ownership that keeps the app alive for everyone.

What you'll find up there:
• Point your device at the sky and Star Chart tells you exactly what you're looking at — in real time, using GPS and a precise 3D model of the universe
• Over 20 million stars accurately mapped across both hemispheres
• All 88 constellations, illustrated with the timeless artwork of 17th-century astronomer Johannes Hevelius
• Every planet in the solar system, their moons and the Sun — all rendered in beautiful 3D
• The complete Messier catalogue of 110 deep sky objects
• Comets, meteor showers, and satellites tracked live
• Guided Tours — let Star Chart take you on a journey through the night sky
• Time Shift: travel up to 10,000 years into the past or future and watch the sky change
• Voice control: just say "Fly me to the Moon" or "Where is Andromeda?"
• Tap anything to learn more — distance, brightness, mythology and more
• View below the horizon, set any location on Earth, zoom deep into star fields

Whether you're a curious child pointing a phone at the dark, or a lifelong amateur with a telescope and a notebook — Star Chart is your companion under the stars.

We've been building Star Chart since 2009 and we're not done yet. Send us your thoughts: [email protected]

AR mode requires a device with a built-in compass. Manual scrolling supported on all devices. No internet connection required for normal use.