iPhone Screenshots


Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with a mass slightly less than one-thousandth of the Sun but is two and a half times the mass of all the other planets in our Solar System combined.
This app shows the positions of Jupiters four Galilean satellites for any date and time from January 1,1900,to December 31,2100.
It also can shows the position of Jupiter's Great Red Spot for any date and time.

What's New

Version 1.3.0

some bug fix

Ratings and Reviews

No one can say this is bad


This is very great! I always wanted to learn about Jupiter and its moons,thank you

Does what I was looking for!


I was looking for something that would show me which moons where which when looking through my telescope. This did the job perfectly. Could it include more features? Sure. But it does exactly what I was looking for. The inclusion of shadows on Jupiter during moon transits was a very nice touch! Please make one for Saturn!!! :)

Useful but lacks features


The app plots the current moon positions and allows the user to jump back and forth in time. It doesn't make graphs of the positions over time and doesn't predict events such as transits. The GRS transits over the next few hours are shown. It would be nice if the app plotted the planet's elevation in the sky and gave time of meridian crossing. Despite being simple, it is useful. Thanks!


in dream
1.5 MB
Requires iOS 5.1 or later. Compatible with iPhone, iPad, and iPod touch.
English, Simplified Chinese
Age Rating
Rated 4+
© 2013,xeecos.com


  • Family Sharing

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

More By This Developer

You May Also Like