* 'Recognize' mode randomly highlights stars in the view. How many can you name?

* 'Find' mode does the converse. Given their names, become adept at pointing out the navigational stars' positions !

Works offline

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Premium upgrade (in-app purchase)

* Increases the inventory of named stars from an initial 20 to the full complement of 58 bright stars listed in the nautical almanac

* Unlocks recognise/find on constellation groupings

* Adds to the view the Moon and the brightly visible planets (Mercury, Venus, Mars, Jupiter, Saturn)

* Removes ads