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Meteo calculator for temperature, humidity, dew point, heat index and wind chill
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Track your sailing or join to regatta and share your live tracking with friends.
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US Amateur Radio Exam preparation app.
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Put your geographic knowledge to the test with the official GeoBee Android app!
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Astronomy Textbook, MCQ, Essay Questions, Flash Cards, Key Terms by OpenStax
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Space Launches, Space Images from NASA and Hubble, Space News
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Ski resorts, info, Ski, Tracking
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Watch Planets, Stars and Constellations, in Live Mode or as Astronomical Clock
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Get point-to-point route directions and share your location with friends.
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Complete version with photorealistic sky map, 45,000 stars, and all features.
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Identify lights in the night sky, predict passes of the ISS and of satellites
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Mobile Observatory 2 - The Astronomy App for your Android Device
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Teach & Learn astronomy: 3D model of our solar system for educational purposes
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A simple tool and easy to use for earth and moon in a geocentric presentation.
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Explore the Night Sky
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A clear and detailed star chart with a wealth of additional functionality
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Astronomy app to find planets, moons, stars, galaxies and more
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Experience the sky, planet earth and the solar system like never before
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Astronomical observation planning tool with excellent star charting capabilities
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The FE Clock is a way to track sun & moon around the circle of the earth.
