Sextant Stars 1.7 [免费版]

Horizon view of the navigational stars and their constellations, with interactive rote learning modes.
* '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 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
* Adds to the view the Moon and the brightly visible planets (Venus, Mars, Jupiter, Saturn)
* Removes ads

• 01/15/2018: Sextant Stars 1.7
• 报告一个新版本