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have a view of Starry sky over a device
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Track, plan, and journal your trip.
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Astronomy and weather toolkit for stargazing.
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An interactive technical guide
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A big ball of wibbly wobbly, timey wimey stuff
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A simple map of the sky that shows the positions of the sun, moon and planets.
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The sky is fascinating but overwhelming — SkyWiki makes it simple
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Weather, seeing, transparency, and light pollution
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A 3-D Galactic Atlas
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Your MUST HAVE app trekking or hiking in Taiwan!
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Record your finds and the routes you do with the metal detector and import maps!
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Mantis Laser Academy is a dry-fire laser training system
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Learn constellations, stars & DSOs from an Astronomy Olympiad gold medal winner
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Stone & rock guide. Explore crystals with mineral & gemstone meanings
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NASA Selfies - Share NASA’s discoveries in the universe
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Fishing weather forecast. Find the best time to fish with pressure data.
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Experience amazing views on our planet, the Universe and much more.
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A realistic sky map to observe stars, planets, satellites and constellations!
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Your guide to thousands of satellites and spacecraft in orbit around Earth!
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XFishFinder sonar fish finder, working with Lucky echo sounder sensors