A Jupiter Almanac
Jupiter spends its 2012-2013 apparition in Taurus, spectacularly close to the Hyades and Pleiades star clusters. This is good news for northern observers, who can see Taurus for a very long time and quite high in the sky.
Jupiter is reasonably well-placed for telescopic observing from July 2012 through April 2013. At the beginning of this period, Jupiter is visible only around dawn, but by October the king of planets is fairly high in the sky by midnight or earlier.
For the convenience of telescopic observers, we are making available a list of Jupiter's satellite phenomena from June 2012 through April 2013 to supplement the monthly lists that usually (but not always) appear in Sky & Telescope. The list is in the form of a 22-page PDF, so you'll need a free copy of Adobe Reader software to open it and print it.
But most important of all, you can only see the GRS when it's on the side of Jupiter that's facing Earth. And it's only reasonably easy to see within about an hour of the time that it transits, passing halfway across Jupiter's disk during each 9-hour and 55-minute rotation.