Let SaturnMoons guide you to observing Saturn’s complex system of rings and moons.

Sky & Telescope’s latest app helps you locate Saturn’s nine largest moons with a pinch-zoomable interface set to your local time, guiding you to Saturn’s largest moon, Titan, or helping you try your luck with the fainter moons. The time controls allow you to step through the seconds or hours, or speed through days or even years to see where the moons will be down the line. And you can flip the view to customize what you see through your telescope.

Plus, our full encyclopedia section contains fascinating entries and stunning images of Saturn’s bizarre lunar family. Learn more about Saturn’s “death star” moon, Mimas, two-faced Iapetus, and the salty ocean frothing beneath Enceladus’s surface.

Please note: this application is designed to work in landscape orientation only so that you may view Saturn, Saturn’s rings, and the lunar family at their best.

What’s New

Version 1.1

This app has been updated by Apple to use the latest Apple signing certificate.

- Updated user interface
- Converted to 64-bit app

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

astronoman ,

Almost perfect!

The only thing this app is missing is the info telling you when Saturn rises & sets for your location.

i_love_monica_bellucci ,

Pretty darn weak...

I expected more from S&T on a simple app like this. My main complaint is the size of the planet viewing window in the iPad. More than half of the screen is used by the program header area and the "learn more" buttons. I mean, REALLY? I didn't notice that when I bought the program since it looks different than on the iPhone. I can't recommend this version - it's a joke, really.

entropicllama ,

Garbage moon data

On repeated nights, the positions charted in this app haven't matched what was in the eyepiece. Going back to last night, I also compared the mobile app chart to the S&T applet on the website. Not a match. Amazingly sloppy product.

App Privacy

The developer, Guidebook Inc, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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