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SkySafari 4: Journey into Night! Explore Sun, Moon, Mars, Stars, Satellites, and NASA space missions!

By Simulation Curriculum Corp.

This app is only available on the App Store for iOS devices.


***SkySafari has been upgraded! For more information on the NEW SkySafari 5 for iOS, visit or search for SkySafari 5 in the App Store!***

Want to learn more about the night sky? Then SkySafari 4 is the app for you! Just hold your device up, and SkySafari 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 many years in the past or in the future! Animate meteor showers, comet approaches, transits, conjunctions, and other celestial events with SkySafari’s 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 heavens! Browse from hundreds of object descriptions, astronomical photographs, and NASA spacecraft images in SkySafari. Explore tons of NASA Space Missions! Stay up-to-date with SkyWeek, for all major sky events every day – miss nothing!

SkySafari 4 is the most comprehensive astronomy app – a powerful planetarium that fits in your pocket. It puts the universe at your fingertips with thousands of stars, planets, satellites, and other objects AND hundreds of astronomical images and encyclopedic object descriptions!

All this is built into SkySafari 4 – no need for an Internet connection. The streamlined interface turns your iOS device into a celestial travel guide! This app is everything the casual stargazer will ever want.

Additional Features:

• 120,000 stars; over 200 star clusters, nebulae, and galaxies; all major planets and moons, and dozens of asteroids, comets, and satellites including the International Space Station (ISS).

• Animated meteor showers with complete viewing information & spectacular graphics.

• Orbit Mode – Leave the Earth’s surface behind, and fly like a NASA space probe. Travel through the solar system, and open new horizons!*

• Night Vision – Preserve your eyesight after dark.

• SkyWeek – Daily interactive star chart and links to more articles on Sky & Telescope’s website.

• Apple Maps Integration – Choose your location from a built-in Maps view.

• Horizon Panoramas – Angel Island, Manua Kea Observatory, Uluru/Ayers Rock, Snowbird Summit, Trinity Alps, Yerba Buena Gardens, or customize your own!

• For features such as telescope control and more, check out SkySafari 4 Plus and SkySafari 4 Pro!

*Available through In-App Purchase

What's New in Version 4.5.3

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.


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Customer Reviews

Outstanding Astronomy App

I've been an amateur astronomer since 1979 and have tried a number of computer programs for astronomy. Sky Safari is by far the best available for the iPhone and is even better on the iPad. Touch an object to select it, then touch the Info button for a wealth of information: name, type of object, rising and setting times, apparent magnitude, and much more. And the sky simulation is spot on. A great value for a very small price.

Low cost, many-featured and beautiful astronomy app!

I got SkySafari soon after I bought my 1st iPhone. I was instantly lost in the sky. Since then SkySafari has been completely rewritten. It's more beautiful and information-filled than ever. 1st app I open in the morning after I check the weather. Takes me to the stars or brings the stars to me.

Great, but fix gyroscope

This app is really amazing overall, especially for beginning astronomers. However, one significant improvement to the app would be that instead of moving the iPhone to activate the gyroscope, there would be a button to tap to activate it, allowing amateur astronomers to use it with their telescopes. If this were added, it would definitely be a 5 star app.

SkySafari 4: Journey into Night!  Explore Sun, Moon, Mars, Stars, Satellites, and NASA space missions!
View in iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Reference
  • Updated:
  • Version: 4.5.3
  • Size: 123 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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Top In-App Purchases

  1. Orbit Mode$0.99