Ad Astra: Star Atlas v2.2

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About this app

Developer Description

Skyguide, descriptions, night vision mode. Essential tool for every astronomer.

An essential tool for every astronomer. The star atlas and skyguide that makes it really easy to pick the best objects, make your own observation list and use it when you are outside.

Ad Astra contains detailed maps of all 88 constellations, and descriptions of thousands of objects: star clusters, planetary nebulae, galaxies, double stars and variable stars. All within reach of amateur telescopes and in a lot of cases, also viewable in binoculars.

If you like an object, just press the + sign next to it to add to your personal observation list. When you go outside at night, use the large maps in the special red night vision mode to find the object and start observing.

Ad Astra covers both the northern and southern skies. And supports both your Smartphone and Tablet, you only have to pay once to use Ad Astra on both devices!

Ad astra is made by amateur astronomers, for amateur astronomers. And for everyone who likes to start exploring the heavens with a reliable tool. If you are fed up with fancy planetarium apps, this is your way to go deeper.

Ad Astra has been built upon open Astronomical data. It features deep sky objects up until visual magnitude 12. What do you want to see tonight? Start now.

Disclaimer
We do our utmost to deliver you the best software and data available in the market, but of course we cannot guarantee - nor will we accept any responsibility regarding - the proper functioning or accuracy of both. Data sources can change over time. You can not derive rights from this information. By downloading and using Ad Astra - Sky Atlas you accept these terms.

What's New

V2.2 - Modernized the program code, the app is now compatible with the latest Android versions.

Version Information

Version: 2.2
Downloads: 10K+
Updated on: Aug 7, 2025
Released: Nov 19, 2014
Requires: Android 4.0

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Ad Astra: Star Atlas users say on Google Play

★★★★★

A Google user

getting crashed just after I paid for pro version. however it again started after one round of uninstalling and reinstalling. app is unparalleled. excellent. very informative. very handy.

★★★★

A Google user

Works well enough for novice star hopping

★★★

A Google user

The list of items is definately a very nice summary and navigates nicely. I'm missing a few things tho (unless I didn't find them): - a small summary at the top of the object-info with e.g.: size and magnitude (which isn't always present in the info on the object) - remove items from your observation list 1 by 1 - when you click on an item.

★★

A Google user

I was about to pay to support the dev. Then the app crashed a couple times.

★

A Google user

Sucks