Thanks for both replies - very useful! (Have been trying to respond sooner but my login wouldn't work).
We are about 50km from a city and 10km from even little towns so (after moving from Sydney) everything seems pretty bright up there!
I didn't realise Jupiter could get that bright - now I need a good telescope.
We bought one (Barska?) for $100, allegedly down from $200, but it seems pretty hopeless - very difficult to make fine adjustments, flimsy tripod, and it bends slightly at the rack & pinion joint when extended. I'll hunt around on this site for tips about what to buy next.
Thanks for the tips about the sky-viewing software by the way.
Robert
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