Do I understand correctly that there will be a double transit (Io and Ganymede) of Jupiter this 16 June evening? And that the GRS may also be completing its transit early on in the double transit? Should be worth a look, even through my little 8" dob? What is the recommended filter to best see the GRS and the moons' shadows? (I only have a choice on what's in my Saxon boxed set - yellow, red or blue
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Thanks all
