The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Horsham Online:
Explore 3D globes of Saturn's moonsUse pinch and finger gestures to manipulate a 3D globe of one of seven of Saturn's moons. As you zoom in more labels appear as finer detail comes into view. You can double tap on the labels to get more information about a particular feature.Saturn Atlas displays the approximate phase, axial tilt and central meridian of the selected moon from your chosen location and time, and renders these on the globe. You can switch to a 'Globe' mode that allows you to spin the moon around to see the whole globe. The feature database is searchable and can move the globe to a searched feature. The phase can be switched off to show the whole globe more clearly.The moon's globe can be shown with north or south at the top or inverted to suit different telescope views.Over 440 named features across seven moons are included. These moons are Dione, Enceladus, Iapetus, Mimas, Rhea, Tethys and Titan.The phase view shows the current view of Saturn itself including the tilt of the rings. You can swipe left and right on the phase view to go backwards and forwards a day. When you turn the device to landscape mode a wider view is shown with the moons in their approximate positions for the time selected.Date, time and location can be changed. There is also a realtime mode that will update to the current time.Atlases for the Moon, Mars, Mercury, Venus and Jupiter are also available on the App Store!