Unfortunately, if you have an iPhone or an iPad, it seems that the free version of Stellarium is not in the APP Store anymore. Is Stellarium Available For iPhone And iPad? If you have an Android device, you can choose between Stellarium Mobile (free) and a more advanced version, called Stellarium Mobile PLUS, which is the commercial version and costs about $14. The interface of Stellarium’s web application. You can even use a stripped-down web-based version if you cannot/want to install it.

Download links for the different computer platforms. Luckily Stellarium is not only available for computers running on Windows (both 32-bit and 64-bit), but it is also available for Linux and Mac OS X (64-bit only).

For the mobile app, though, the answer is: depends. Stellarium for your desktop/laptop is free. Select the clock icon on the left hand menu and adjust the time in the resulting Date and timewindow until the night sky is shown.If you don’t have Stellarium already installed on your computer, you can download it from the official Stellarium website.The main menu, consisting of a vertical line of icons, will appear. Move your mouse to the lower left-hand side of the Stellarium screen.To change the display to show the view of the sky at a different time: By default the program will initially display a view of the sky at the current time, so you may therefore have a daytime view if you are carrying out this activity during the hours of daylight in Tenerife. Time is actually already passing in Stellarium from the moment you start the program (you can see this in the information presented at the bottom of the screen).

This clicking and dragging around the screen does not alter time, just your viewing direction.

As you do so, take note of the cardinal points marked in red on the horizon (‘N, S, E, W’) which denote the direction of view – north, south, east or west. Within Stellarium you can navigate around the sky by simply clicking and dragging with the mouse (or with a finger if you are using a mobile or touchscreen device).

Stellarium online web