Cosmo Lens: Star Finder
Night Sky Map & AR Astronomy
About
Identify stars, planets, constellations, and more in real-time using your phone's camera. This app offers a nightly sky score, event predictions, and detailed information about celestial objects. It works offline and provides a personal planetarium experience.
What's New in Cosmo Lens
1.1.2
September 7, 2026
Customize your sky map background. Gaia, Brunier, Planck, infrared, hydrogen-alpha: each map reveals another face of the Milky Way. Open Tools, then Map customization.
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FAQ
What celestial objects can Cosmo Lens identify?
Cosmo Lens can identify nearly 100,000 stars, all 88 constellations with artwork, the full Messier catalog, thousands of NGC/IC deep-sky objects, planets, satellites, and galaxies. It provides detailed information and photos for each object.
Does Cosmo Lens work offline?
Yes, Cosmo Lens works fully offline. The entire star catalog and sky engine are stored on your phone, making it ideal for use in remote locations with no signal.
How does the Nightly Sky Score work?
The Nightly Sky Score (0-100) indicates the best conditions for stargazing. It combines factors like darkness, moon brightness, cloud forecast, and a light pollution atlas to help you decide when to go out.
Can I see future celestial events with Cosmo Lens?
Yes, you can time travel through the sky to any date, past or future. This allows you to preview solar and lunar eclipses, planetary conjunctions, and other rare events before they happen.
Does Cosmo Lens have ads?
No, Cosmo Lens is ad-free. The developers state there is nothing between you and the stars, ensuring an uninterrupted stargazing experience.
What devices is Cosmo Lens compatible with?
Cosmo Lens is available for iPhone, iPad, and iPod. It requires iOS 13.0 or later.
How often is Cosmo Lens updated?
The latest version is 1.0.8, last updated on August 30, 2026. While specific update frequency isn't detailed, this indicates ongoing development and support.
What languages does Cosmo Lens support?
Cosmo Lens is available in 15 languages, making it accessible to a global audience interested in astronomy and stargazing.