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-   -   Io transit on Ganymede - Cool images! (http://www.trekbbs.com/showthread.php?t=101813)

trekkiedane August 20 2009 02:35 PM

Io transit on Ganymede - Cool images!
 
Here's the story:

http://www.cloudynights.com/ubbthrea...4/Main/3278322


SilentP August 20 2009 03:13 PM

Re: Io transit on Ganymede - Cool images!
 
Nice image. Question for you astronomer buff's, is Io that much bigger than Ganymede? The shadow seems pretty huge, so either there's a big size difference, or they pass real close there.

trekkiedane August 20 2009 03:22 PM

Re: Io transit on Ganymede - Cool images!
 
Ganymede is the largest moon in the entire Sol system, it has a mean radius of 2634.1 0.3 km (0.413 Earths) Io has a mean radius of 1,821.3 km (0.286 Earths) (Wikipedia)


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