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I have had a couple of peeks at Jupiter this week from Melbourne. I have had a "new" 5" refractor waiting for a good test run for about six months, so broke it out for a Jupiter session.
Seeing was awful, however, with one of those gusty SE winds blowing. The 5" is a lot larger than my 4" APO, but I immediately saw the GRS, and a shadow transit in progress. I quickly confirmed this with some software - Io was in transit, and the GRS was visible. The scope really feels the wind though - quite a lot of wiggle and shimmy - probably too much for my mount.
I set up my 4" to compare, and definitely could see more detail in the 5", but the 4" seems sharper.
The next night was still breezy, but less so, so I tried again. Seeing again wasn't great but I could see a lot more detail in Jupiter's bands. With Mars and Saturn much higher in the Melbourne sky in a month or two, I'm looking forwards to spending more time evaluating the 5".
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