Folks lucky enough to live in Europe will be able to see a triple total solar eclipse (triple shadow transit) on Jupiter, tomorrow night (early Saturday morning, technically). At least a 5 cm diameter telescope will be required to see this.

It lasts from 4:32 until 5:37 AM UT. The east coast of the US can see it too, although Jupiter will be very low in the east for those observers.

How do I know If see it? Looks like a single total solar eclipse?

You'll see three black dots about 1.5 arcseconds in diameter travelling across the face of Jupiter. Those are the shadows of three of the Galilean Moons. It's sorta what a total solar eclipse on the Earth would look like when viewed from space, except the shadows are bigger, and there will be three of them!

Dammit... this is the coolest thing ever posted here at TMO. Thanks for the head's up.

For those of you who, like me, are unfortunate enough to live in the heavy-rain-cloud covered UK, here are some links with pictures:

http://www.nbcnews.com/science/jupit...pse-8C11374052
http://www.skyandtelescope.com/obser...227390121.html

And here is a link of a similar event in 2004:

http://www.newscientist.com/article/...n-jupiter.html

Edit: OP, you may want to change the title, lest some unfortunate lurker finding the thread in 3 moths' time thinks it's "tomorrow"