SkySafari 3 Pro|教育線上App不用買

***SkySafari has been upgraded! Copy and paste the link below into your browser for the NEW SkySafari 4 Pro***https://itunes.apple.com/us/app/skysafari-4-pro/id766939977?mt=8"The best of all the star chart apps for iOS..."- The Mac Observer"Revolutionary and a game-changer..."- Sky and TelescopeSkySafari 3 Pro will completely replace your desktop astronomy software, and forever change the way you view the night sky. With SkySafari 3 Pro, you can turns your mobile device into a 21st-century telescope controller. SkySafari is your celestial travel guide!SkySafari 3 comes in three versions. This version - Pro - includes everything in our other two versions, and adds the largest database of any astronomy app, period. What you can do with SkySafari 3 Pro:• 15.3 million stars from the Hubble Guide Star catalog, 740,000 galaxies down to 18th magnitude, and 580,000 solar system objects - including every comet and asteroid ever discovered.• NASA's latest LRO Moon map, with 8x the resolution of any other SkySafari version.• Telescope Control – Point your GoTo or “Push-To” telescope anywhere in the sky using your device’s WiFi and our SkyFi or SkyWire!• Accurately shows you the sky from any place on Earth, at any time up to 1 million years in the past or future. • 1100 encyclopedic descriptions of sky objects written by professional astronomers.• Over 800 images from NASA space missions, the Hubble Space Telescope, and the world's foremost astro-photographers.• Point and hover your mobile device at the night sky to identify constellations, planets, satellites, stars, and other sky objects from your location. • Search for any object in the sky, and follow the arrow on screen to find it!• “Night” button to preserve your dark adaptation as you're exploring the night sky.• “Time Flow” Feature - follow the motion of sky objects as SkySafari compresses days, months, and years into a few seconds. • SkyWeek - interactive sky charts for each day of the week, and links to more articles on Sky and Telescope's website. • Includes all major sky events: eclipses, conjunctions, good meteor showers — miss nothing!***TOP NEW FEATURES IN SkySafari 4 Pro***• Completely reinvented scope control panel with new telescope equipment settings.• Animated Meteor Showers – with complete viewing information and spectacular graphics!• New and Updated Descriptions – for HUNDREDS of objects!• Log observations of objects directly from the Object Info view.• Apple Maps Integration: Choose your location from a built-in Maps view!• Advanced Search – find objects using properties other than their name, results sortable by name, number, magnitude, RA, and many other properties!• Hugely Expanded Database – General Catalog of Variable Stars, Washington Double Star catalogs, Guide Star Catalog 2.x stars to magnitude 15 – total 25 million• Dozens more tweaks, bug fixes, and additions we don’t have room to list here!***Copy and paste the link below into your browser for the NEW SkySafari 4 Pro***https://itunes.apple.com/us/app/skysafari-4-pro/id766939977?mt=8

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