Looking for more than the basic astronomy app? Then SkySafari 4 Plus is the app for you! Search from a hugely expanded object database and enjoy more than 800 high-resolution images from NASA spacecraft, Hubble Space Telescope, and world’s foremost astro-photographers!
Want to learn more about the night sky? Just hold your device up, and SkySafari 4 Plus will find stars, constellations, planets, and more! The star chart updates automatically with your real time movements for the ultimate stargazing experience.
See an eclipse now, in the past or in the future! Simulate the night sky from anywhere on Earth up to 10,000 years in the past or future! Animate meteor showers, comet approaches, conjunctions, and other celestial events with Time Flow.
Trying to locate the Sun, Mars, or the Moon? Search from our extensive database and track the arrow to be directed to their exact locations in the sky before you. See spectacular views of Venus, Jupiter, Saturn, and other planets!
Learn about the history, mythology, and science of stargazing! Browse from over 1500 encyclopedic object descriptions and astronomical photographs. Explore tons of NASA space missions! Stay up-to-date with SkyWeek, for all major sky events every day – miss nothing!
Searching for an app to control your telescope? SkySafari 4 Plus also adds wired or wireless control for Celestron, Meade, Orion, SkyWatcher, and many other telescopes. Point your GoTo or “Push-To” telescope anywhere in the sky, and see the rings of Saturn! Plan observing sessions with Observing Lists, log your observations, and share with friends!
All this is built into SkySafari 4 Plus – no need for an Internet connection. It is the most comprehensive astronomy app – a powerful planetarium that fits in your pocket and puts the universe at your fingertips!
SkySafari 4 Plus turns your device into a 21st century telescope controller! More astronomers use our apps for telescope control than any other app – SkySafari 4 Plus will keep anyone with a small backyard telescope busy for years! It will become your go-to celestial travel guide!
• 2.5 million stars; 31,000 deep sky objects including the entire NGC/IC catalog; over 200 star clusters, nebulae, and galaxies; all major planets and moons; over 4,000 updateable asteroids, comets, and satellites including the International Space Station (ISS).
• Animated meteor showers with complete viewing information & spectacular graphics.
• Night Vision – Preserve your eyesight after dark.
• Time Flow – Follow the motion of sky objects as days, months, and years are compressed into a few seconds.
• SkyWeek – Daily interactive star chart and links to more articles on Sky & Telescope’s website.
• Advanced Search – Find objects using properties other than their name. Results are sortable by name, number, magnitude, RA, and more!
• Orbit Mode – Leave the Earth’s surface behind, and fly like a NASA space probe. Travel through our solar system, and open new horizons!
• Apple Maps Integration – Choose your location from a built-in Maps view.
• Horizon Panoramas – Angel Island, Mauna Kea Observatory, Uluru/Ayers Rock, Snowbird Summit, Trinity Alps, Yerba Buena Gardens, or customize your own!
• Telescope Control – Using your device’s built-in WiFi, and our SkyFi or SkyWire serial accessories (sold separately).
• For even more features, check out SkySafari 4 Pro!
1. Fixed problem on iPhone 6s where you couldn't select objects by tapping on them.
2. Fixed problem with drawing shadows of planets on moons when moon is closer to sun than planet.
3. Fixed problem with displaying Callisto shadow events as Multiple Moon shadow events.