Sextant Stars (com.sharpitor.nightsky20) on Google Play
An abridged celestial viewer for the navigational stars and their constellations, featuring two learning modes.'Recognize' mode randomly highlights stars in the view. You must identify the highlighted star (or constellation grouping) by selecting its name from a list. 'Find' mode works in converse fashion: You are prompted with the name of a star or constellation, and must indicate correctly its position in the sky.Works offline-----------------------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* Enables recognise/find on constellation groupings * Adds to the view the inner planets : Mercury, Venus, Mars, Jupiter, Saturn* Removes ads