Pressing the down arrow will show you information about the star's brightness and location in the sky. When using the app, at the top left of the screen, you will find a down arrow, a star within a circle, and the designation for the star closest to where you last tapped the screen. Stellarium Mobile Plus review: Functionality Download Stellarium Mobile Plus: Android (opens in new tab), iOS (opens in new tab).It's an incredibly useful app for beginners, especially when combined with some of the best telescopes (opens in new tab) – or best binoculars (opens in new tab) – as it allows you to quickly map out the night sky and identify what you're seeing. This premium app features an ultra-comprehensive map based on the Gaia DR2 database, which has a collection of over 1.69 billion studied stars, as well as all known planets, comets, and most prominent celestial objects from a catalog of over two million nebulae and galaxies - the most comprehensive that any mobile app offers. The mobile version, Stellarium Mobile Plus, was developed by two of the original creators of the desktop app and provides an illustrative yet realistic map of the stars for iOS and Android devices. Stellarium is an established name in star maps and one of the best stargazing apps (opens in new tab) around, having originated as an open-source planetarium desktop program.

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