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Download Star Chart and find out why 14 million people are using it.
Star Chart is free now! Have a virtual star chart in your pocket! Look through the eyes of your iPhone* and see a virtual window stretching across the entire visible universe.
All you have to do is point your iPhone* at the sky, and the star chart will accurately identify the celestial bodies you're looking at.
Using state-of-the-art GPS technology, precise 3D maps of the universe, and all the high-tech features of the iPhone, the star chart can calculate the current positions of every star and planet visible from Earth in real time and show their exact locations, even in broad daylight!
Wonder what that bright star is called? Point your iPhone at it - you might find it's a planet!
Wonder what the night sky looks like to people on the other side of the Earth? Just point your iPhone down!
Wonder where your constellation is in the sky? The star chart will tell you all about it and more.
Features of the star chart include:
- Just point and look. No scrolling needed to discover what you're seeing*.
- Or, use your finger to explore space too - great for wheelchair-bound astronomers!
- Supports dynamic iPhone orientation for viewing. Allows you to hold your iPhone at any angle to view space.
- Accurately describes all visible stars in the Northern and Southern Hemispheres - over 125,000 in total!
- Displays all the planets of the solar system, plus the sun and moon.
- Shows all 88 constellations, and constellation images based on the outstanding works of 17th-century astronomer Johannes Hevelius.
- Includes strange deep-space objects from the complete Messier catalog.
- Tap on a part of the sky on the screen to get information about the celestial body you're looking at, including its distance and brightness.
- Extremely powerful zoom function. With an intuitive finger movement, you can view the details of space.
- Highly configurable. The star chart only shows the space objects you're interested in.
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